Medicine packaging apparatuses and methods for accurately determining a remaining sheet amount of a medicine packaging sheet are described. The apparatus includes: a roll support section to which a core tube of a medicine packaging sheet roll is attached; a sensor disposed in the roll support section for outputting a count value according to a rotation amount; a wireless reader-writer unit for writing information to a core tube IC tag and reading said information; an information generation section for generating information to be written to the core tube IC tag; a remaining sheet amount estimation section for estimating a current amount of remaining sheet based on the information and dimensional information of the core tube; and a controller which selectively performs an operation if a reference time-point count value is not yet written to the core tube IC tag and another operation if the count value is already written thereto.

Provided is a glass winding system configured to switch between a breaking mode and a winding mode in which glass is wound with an interleaf to form the glass roll. Furthermore, a system for forming glass rolls includes a glass ribbon supply system (100), a cutting system (200) configured to cut the initial glass ribbon into a first glass ribbon and a second glass ribbon, a first glass winding system (400) configured to wind the first glass ribbon to form a first glass roll, and a second glass winding system (300) configured to switch between a breaking mode and a winding mode.

A separator roll, an electrode assembly, a battery cell, a battery, and an electric device are provided. The separator roll includes a separator body and a warning coating. The separator body has a head end and a tail end in a length direction and is constructed to be capable of winding in the length direction to form the separator roll with the tail end as a roll core. The warning coating is provided on the separator body. The warning coating is configured to be spaced from the tail end by a first preset length. In this way, the warning coating provides a warning in advance for the position of the tail end of the separator body on which the warning coating is located.

A separator roll, an electrode assembly, a battery cell, a battery, and an electric device are provided. The separator roll includes a separator body and a warning coating. The separator body has a head end and a tail end in a length direction and is constructed to be capable of winding in the length direction to form the separator roll with the tail end as a roll core. The warning coating is provided on the separator body. The warning coating is configured to be spaced from the tail end by a first preset length. In this way, the warning coating provides a warning in advance for the position of the tail end of the separator body on which the warning coating is located.

Provided is a polyester film roll which has less wrinkles and film surface defects, exhibits no deviation of winding, and is suitable for secondary processing such as coating and vapor deposition. The polyester film roll is obtained by winding a biaxially oriented polyester film around a core, and is characterized by satisfying requirements (1)-(3) below: (1) the average winding hardness of the surface of the polyester film roll is in the range of 500-700; (2) the variation rate of the winding hardness of the surface of the polyester film roll in the film width direction is 1-5%; and (3) the variation rate of the average winding hardness from the surface of the polyester film roll to the core is 3-10%.

Provided is a polyester film roll which has less wrinkles and film surface defects, exhibits no deviation of winding, and is suitable for secondary processing such as coating and vapor deposition. The polyester film roll is obtained by winding a biaxially oriented polyester film around a core, and is characterized by satisfying requirements (1)-(3) below: (1) the average winding hardness of the surface of the polyester film roll is in the range of 500-700; (2) the variation rate of the winding hardness of the surface of the polyester film roll in the film width direction is 1-5%; and (3) the variation rate of the average winding hardness from the surface of the polyester film roll to the core is 3-10%.

A paper towel product having machine direction and cross-machine direction perforations that will capably separate the paper towel roll as full sheets, half sheets, or quarter sheets, and a method of making the same.

A paper towel product having machine direction and cross-machine direction perforations that will capably separate the paper towel roll as full sheets, half sheets, or quarter sheets, and a method of making the same.

Provided are: an infrared control film in which an infrared light transmittance changes depending on the temperature, a tint in a front direction is excellent, and durability is excellent; and a window including the infrared control film. The infrared control film includes: a liquid crystal layer; and two substrates each of which includes at least one of an ultraviolet absorber or a colorant, in which the liquid crystal layer is disposed between the two substrates, the substrate includes 0.001 mass % or higher of the ultraviolet absorber or the colorant, a transmittance of the infrared control film at 0 C. with respect to an incidence ray at 1000 nm at a polar angle of 0 is higher than 70%, a transmittance of the infrared control film at 40 C. with respect to an incidence ray at 1000 nm at a polar angle of 0 is lower than 60%, and the following expressions are satisfied.

0.8<a1<1.2

0.8<b1<1.2 a1=(Transmittance of Incidence Ray at 450 nm at Polar Angle of 0)/(Transmittance of Incidence Ray at 550 nm at Polar Angle of 0) b1=(Transmittance of Incidence Ray at 550 nm at Polar Angle of 0)/(Transmittance of Incidence Ray at 700 nm at Polar Angle of 0)

Provided are: an infrared control film in which an infrared light transmittance changes depending on the temperature, a tint in a front direction is excellent, and durability is excellent; and a window including the infrared control film. The infrared control film includes: a liquid crystal layer; and two substrates each of which includes at least one of an ultraviolet absorber or a colorant, in which the liquid crystal layer is disposed between the two substrates, the substrate includes 0.001 mass % or higher of the ultraviolet absorber or the colorant, a transmittance of the infrared control film at 0 C. with respect to an incidence ray at 1000 nm at a polar angle of 0 is higher than 70%, a transmittance of the infrared control film at 40 C. with respect to an incidence ray at 1000 nm at a polar angle of 0 is lower than 60%, and the following expressions are satisfied.

0.8<a1<1.2

0.8<b1<1.2 a1=(Transmittance of Incidence Ray at 450 nm at Polar Angle of 0)/(Transmittance of Incidence Ray at 550 nm at Polar Angle of 0) b1=(Transmittance of Incidence Ray at 550 nm at Polar Angle of 0)/(Transmittance of Incidence Ray at 700 nm at Polar Angle of 0)