Support film for tape and tape
AssigneesHisamitsu Pharmaceutical Co., Inc., Toppan Printing Co., Ltd., Maruto Sangyo Co., Ltd.
InventorsYasunori Takada, Takito Shima, Tetsurou Tateishi, Tsuguki Nishihara, Chiaki Yoshida, Atsushi Matsushima, Tsuyoshi Takamiya
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Abstract
A support film for tape which is used for a tape, the support film for tape includes: a film-shaped support formed of polyurethane; and a barrier layer which includes a water-soluble polymer compound and montmorillonite and is formed on one surface of the support. The support film for tape has a percentage content of the montmorillonite in the barrier layer is equal to or more than 2 percent by weight and equal to or less than 22 percent by weight.
Claims4
A support film for tape comprising:
- a film-shaped support formed of polyurethane, the film-shaped support being disposed on an outermost surface of the support film, the film-shaped support having a thickness being 10 μm to 200 μm;
- and
- a barrier layer which includes a water-soluble polymer compound and montmorillonite, and which is formed on one surface of the film-shaped support,
- wherein a percentage content of the montmorillonite in the barrier layer is equal to or more than 2 percent by weight and equal to or less than 22 percent by weight.
Dependencies are inferred from the claim text.