Antifog laminated film
AssigneeKureha Corporation
InventorsTsutomu Uehara, Takeo Omori, Tadayoshi Itoh
Life of this patent
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Abstract
The present invention provides a laminated film including at least two layers of an outer layer having a printed portion on a surface and an inner layer subjected to an antifogging treatment in which principal resin comprising a solid content of the printed portion is made of chlorinated polypropylene-based resin or urethane-based resin. This antifog laminated film hardly degrades in an antifogging property even when the antifog laminated film subjected to printing on the outer layer of a surface subjected to the antifogging treatment and the printed surface are strongly brought into contact with each other due to an operation of winding the film into a roll or the like.
Claims17
An antifog laminated film provided with at least two layers of an outer layer having a printed portion on a surface and an inner layer subjected to an antifogging treatment,
- wherein a solid content of the printed portion of the laminated film comprises an urethane-based resin as a principal resin,
- the urethane-based resin is set not less than 50 wt % of a resin component of the solid content of the printed portion,
- the inner layer comprises a resin and an antifog agent,
- the printed portion is overprinted by use of a mixed resin containing nitrocellulose as an essential component and another resin, to obtain an overprinted portion subjected to an antifogging treatment, said overprinted portion further comprising an antifog agent or said overprinted portion having an antifog agent coating, and
- the antifog agent is a surfactant selected from the group consisting of anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants or a mixture of surfactants selected from the group consisting of anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants.
An antifog laminated film provided with at least two layers of an outer layer having a printed portion on a surface and an inner layer subjected to an antifogging treatment,
- wherein a solid content of the printed portion of the laminated film comprises an urethane-based resin as a principal resin,
- the urethane-based resin is set not less than 50 wt % of a resin component of the solid content of the printed portion,
- the inner layer has an antifog agent coating,
- the printed portion is overprinted by use of a mixed resin containing nitrocellulose as an essential component and another resin, to obtain an overprinted portion subjected to an antifogging treatment, said overprinted portion further comprising an antifog agent or said overprinted portion having an antifog agent coating, and
- the antifog agent is a surfactant selected from the group consisting of anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants or a mixture of surfactants selected from the group consisting of anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants.
Dependencies are inferred from the claim text.