摘要:
A heat-shrinkable white polyester film is provided which has extremely satisfactory cuttability along a perforation and has light-shielding properties. Also provided are: a label; and a process for producing the film with high productivity. The heat-shrinkable white polyester film comprises a polyester resin constituted of ethylene terephthalate as a main constituent component and containing at least 13 mol % one or more monomer ingredients capable of serving as an amorphous component among all components of the polyester resin. This film has specific heat shrinkability, specific light-shielding properties, and specific mechanical properties. The process is excellent in the productivity of the film. The label is obtained from the heat-shrinkable white polyester film.
摘要:
A heat-shrinkable white polyester film is provided which has extremely satisfactory cuttability along a perforation and has light-shielding properties. Also provided are: a label; and a process for producing the film with high productivity. The heat-shrinkable white polyester film comprises a polyester resin constituted of ethylene terephthalate as a main constituent component and containing at least 13 mol % one or more monomer ingredients capable of serving as an amorphous component among all components of the polyester resin. This film has specific heat shrinkability, specific light-shielding properties, and specific mechanical properties. The process is excellent in the productivity of the film. The label is obtained from the heat-shrinkable white polyester film.
摘要:
The inventive heat-shrinkable polystyrene film is high in shrinkability in the longitudinal direction that is its main shrinkage direction, is excellent in perforated line openability, and has high toughness. The heat-shrinkable polystyrene film is characterized by particular values with respect to hot-water heat shrinkage ratio in the longitudinal and width directions, right angle tear strength in the width direction, and breaking energies in the longitudinal and width directions.
摘要:
There is provided a thermally shrinkable polyester film where the opening ability along the perforation is very good. A thermally shrinkable polyester film comprising polyester resin in which ethylene terephthalate is a main constituting component and not less than 13 molar % of one or more monomer component(s) which can become non-crystalline component is/are contained in the total polyester resin components, wherein the film has specific thermally shrinking characteristics and specific mechanical characteristics after thermal shrinking treatment.
摘要:
There is provided a thermally shrinkable polyester film where the opening ability along the perforation is very good. A thermally shrinkable polyester film comprising polyester resin in which ethylene terephthalate is a main constituting component and not less than 13 molar % of one or more monomer component (s) which can become non-crystalline component is/are contained in the total polyester resin components, wherein the film has specific thermally shrinking characteristics and specific mechanical characteristics after thermal shrinking treatment.
摘要:
The inventive heat-shrinkable polystyrene film is high in shrinkability in the longitudinal direction that is its main shrinkage direction, is excellent in perforated line openability, and has high toughness. The heat-shrinkable polystyrene film is characterized by particular values with respect to hot-water heat shrinkage ratio in the longitudinal and width directions, right angle tear strength in the width direction, and breaking energies in the longitudinal and width directions.
摘要:
A heat-shrinkable polyester film is obtained which is extremely satisfactory in openability along a perforation, has exceedingly high productivity, and is less apt to split in the lengthwise direction in processing, e.g., printing. Provided is a label which is formed from the heat-shrinkable film and is satisfactorily tearable. The label is one formed from a tubular material which comprises as a base a heat-shrinkable film thermally shrinking mainly in the film width direction and which has been cut according to an object to be packaged, both edges in the film width direction having been bonded to each other. The tubular material has been thermally shrunk to constitute the label, with which at least part of the periphery of the object to be packaged is covered. The label has an angle tear strength in the direction perpendicular to the main shrinkage direction (i.e., in the film length direction) of 100-310 N/mm and a tensile break strength in the direction perpendicular to the main shrinkage direction (i.e., in the film length direction) of 50-300 MPa.
摘要:
A heat-shrinkable polyester film is obtained which is extremely satisfactory in openability along a perforation, has exceedingly high productivity, and is less apt to split in the lengthwise direction in processing, e.g., printing. Provided is a label which is formed from the heat-shrinkable film and is satisfactorily tearable. The label is one formed from a tubular material which comprises as a base a heat-shrinkable film thermally shrinking mainly in the film width direction and which has been cut according to an object to be packaged, both edges in the film width direction having been bonded to each other. The tubular material has been thermally shrunk to constitute the label, with which at least part of the periphery of the object to be packaged is covered. The label has an angle tear strength in the direction perpendicular to the main shrinkage direction (i.e., in the film length direction) of 100-310 N/mm and a tensile break strength in the direction perpendicular to the main shrinkage direction (i.e., in the film length direction) of 50-300 MPa.
摘要:
The invention aims at providing a heat-shrinkable polyester film which is excellent in tearability along perforations and in break resistance after storage when used as labels of beverage bottles. The invention relates to a heat-shrinkable polyester film which is made of a polyester resin comprising ethylene terephthalate as the main constituent and containing at least 13 mol % of at least one monomer capable of forming an amorphous component in the whole polyester resin component and which has specific heat shrinkage characteristics and exhibits specific mechanical characteristics after heat shrinking treatment. The film can be produced by a sequential biaxial orientation process comprising longitudinal orientation step, intermediate heat treatment step, positive cooling step, transverse orientation step, and final heat treatment step.
摘要:
The invention aims at providing a heat-shrinkable polyester film which is excellent in tearability along perforations and in break resistance after storage when used as labels of beverage bottles. The invention relates to a heat-shrinkable polyester film which is made of a polyester resin comprising ethylene terephthalate as the main constituent and containing at least 13 mol % of at least one monomer capable of forming an amorphous component in the whole polyester resin component and which has specific heat shrinkage characteristics and exhibits specific mechanical characteristics after heat shrinking treatment. The film can be produced by a sequential biaxial orientation process comprising longitudinal orientation step, intermediate heat treatment step, positive cooling step, transverse orientation step, and final heat treatment step.