王子エフテックス | ALPHAN ハイグレードタイプ（工業用） : 二軸延伸ポリプロピレンフィルム

ALPHAN is a biaxially oriented polypropylene film from OJI F-Tex. The new ALPHAN High-Grade Types are based on capacitor OPP film technology and are ideal as release films for electric and electronic materials, which are rapidly evolving, and for such special industrial applications as cover films for manufacturing processes. Oji F-Tex provides OPP films with corona treatment, specially processed surfaces and other specifications to meet the needs of its customers.

It's common for OPP films to include such additives as anti-blocking and anti-static agents in order to enhance functionality. In the electric materials field, owever, these additives can interfere with the electric materials’ functions.
For this reason, customers require functional films that offer low pollution risk for the electric materials.

Oji F-Tex has developed the ALPHAN High-Grade Types with a minimal amount of additives. Utilizing the surface inertness properties of polypropylene films, the High-Grade Types can be used as release films without the use of a release additive coating.

The new High-Grade Types include an ultra-thin type, a variable surface type (from highly smooth surfaces to high mat-tone surfaces), and a fish-eye less type which prevents defects caused by fine surface protrusions.

・Release films for optics and semiconductors
・Films for transfer
・Surface protection films
・Cover films for adhesive and bonding surfaces
・Over-laminating films
・Carrier films for manufacturing processes

Ultra-thin type

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This ultra-thin film maintains OPP qualities while pushing the bounds of thinness. The film has handling operties that make it applicable for capacitor manufacturing processes. Standard thickness ranges from 4~15μ ｍ thinner grades are also available).

Highly smooth surface type

This highly transparent OPP film has a highly smooth surface featuring minimal amount of anti-blocking agents and small protrusions causing fish-eye defects. The minimization of sm all protrusions not only prevents defects and problems with appearance, but also transfer-related problems.

Fish-eye less type

Compared with previous High-Grade Types, this OPP film raises the standard for reducing fish-eye defects. This type is ideal for applications requiring high-quality appearance and surface properties.

Mat-tone type

This OPP film features an uneven mat-tone surface produced without additives or secondary processing. The film comes in a wide range of specifications, from a fine roughness to ultra-high roughness. The range is differentiated by both appearance and function.
For example, the film surface qualities can be transferred to carrier surfaces, while the friction coefficients can also be controlled.

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Main properties

(The following are representative figures. Oji-TEX cannot guarantee their accuracy.)

Type	Primary model number	Thickness (μm)	Tensile strength (MPa)	Breaking elongation (%)	Thermal shrinkage ratio (%)	Haze (%)	Surface roughness
Type	Primary model number	Thickness (μm)	Tensile strength (MPa)	Breaking elongation (%)	Thermal shrinkage ratio (%)	Haze (%)	Ra (μm)	Rmax (μm)
Direction/Surface			MD TD	MD TD	MD TD		Roughened Smooth	Roughened Smooth
Ultra-thin	EM-501	7	160 320	150 55	3.0 1.0	4.0	0.15 0.10	1.5 0.8
Highly smooth	E-201F	50	140 300	215 60	1.5 0.5	0.3	0.05 0.05	0.5 0.5
Fish-eye less	FG-201	30	150 330	185 60	2.0 1.0	0.3	0.05 0.05	0.5 0.5
Easy-release	MA-411	15	120 280	160 50	2.0 1.0	14	0.45 0.05	4.0 0.5
	MA-420	35	135 315	200 60	1.4 0.5	7.5	0.10 0.10	1.0 1.0
	MAM-430	25	120 230	220 60	2.4 1.0	90	0.75 0.75	5.8 5.8

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