Method for producing film and optical film
A technology of formula and molten resin, applied in the direction of optics, optical components, optical components, etc., to achieve the effect of inhibiting the generation of gel, balancing the suppression of gel generation, and reducing friction
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 approach
[0049] figure 1 A first embodiment of the basic framework of the membrane preparation apparatus is shown. Such as figure 1 As shown in , the film preparation device 10 mainly includes: a film forming processing area 14, where a resin film 12 before stretching is prepared; a longitudinal stretching processing area 16, where the resin film prepared in the film forming processing area 14 is longitudinally Stretching; a transverse stretch processing zone 18 where the film is transversely stretched; and a winding process zone 20 where the stretched resin film is wound.
[0050] In the film forming processing zone 14, the thermoplastic resin melted by the extruder 22 is melt-extruded from the die 24, and the melt-extruded molten resin (hereinafter, may also be referred to as "melt") is continuously The resin film 12 is formed by clamping between the first clamping surface and the second clamping surface, and the first clamping surface and the second clamping surface constitute a c...
no. 2 approach
[0126] image 3 A second embodiment of the basic framework of the membrane preparation apparatus is shown. image 3 The membrane preparation setup shown in figure 1 The production apparatus shown in is different in that the roll for cooling the sheet-like molten resin extruded from the die includes only the casting roll 27 . With the film production apparatus in the second embodiment, the same effects as in the first embodiment can be obtained.
[0127] Also, although in the first embodiment, the film is produced by rotating two rollers at different peripheral speeds and applying a higher roller pressure than conventional pressure, it is also possible to produce the film by setting the same peripheral speed of the rollers and setting about The roll pressure of about 0.1 MPa to 5 MPa is used to prepare the film, and the roll pressure of about 0.1 MPa to 5 MPa is the same level of pressure as conventional pressure.
[0128] "membrane"
[0129] The film produced by the above-...
Embodiment
[0224] Next, the features of the present invention will be described in more detail by Examples and Comparative Examples. Materials, usage amounts, comparisons, contents of treatments, treatment procedures and the like shown in the following examples can be appropriately changed as long as such changes do not deviate from the purpose of the present invention. Accordingly, the scope of the present invention should not be construed as limited by the Examples shown below.
[0225] [Example]
[0226] As for the material of the film, TOPAS#6013 (cycloolefin copolymer, Tg=140° C.) was used as a resin and 0.1% by weight of Irganox 1010 (radical scavenger) was used as an additive to prepare a film. The extruder was equipped with a Φ50mm fully threaded uniaxial screw and L / D=30. The temperature conditions inside the extruder are shown in Figures 4A to 4C middle. also, Figures 4A to 4C The position of each temperature in shows the following parts: C1: the first half of the feed z...
PUM
| Property | Measurement | Unit |
|---|---|---|
| height | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More