1. An adhesive polyester film having an adhesive primer layer disposed on at least one side of a substrate polyester film, wherein:
the substrate polyester film is a stretched film having linear tearability and formed of a mixed polyester resin containing polyethylene terephthalate and a modified polybutylene terephthalate;
the adhesive primer layer contains a polyester resin (A) and a crosslinking agent component content of 0.1% by mass or less, and has a thickness of 0.5 \u03bcm or less; and
the polyester resin (A) in the adhesive primer layer contains a polybasic acid component and an alcohol component, the polybasic acid component including 40 mol % or more of an aromatic dicarboxylic acid and the alcohol component including 50 mol % or more of a diol, and the polyester resin (A) having an acid number of 20 to 60 mg KOHg, a hydroxyl number of 30 to 150 mg KOHg, an oligomer content of 2.0% by mass or less, and a number average molecular weight of 2000 to 5000.
2. The adhesive polyester film according to claim 1, wherein in the polyester resin (A), a sum of the acid number and the hydroxyl number is 50 to 200 mg KOHg.
3. The adhesive polyester film according to claim 1, wherein in the polyester resin (A), a ratio of the hydroxyl number to the acid number, (hydroxyl number)(acid number), is 2.0 to 5.0.
4. The adhesive polyester film according to claim 1, wherein in the adhesive primer layer, a surface carboxylic acid concentration and a surface hydroxyl concentration are each 0.005 or more, and a surface primary amine concentration is 0.0061 or less.
5. The adhesive polyester film according to claim 1, wherein the crosslinking agent component contained at the content of 0.1% by mass or less is a melamine compound.
6. The adhesive polyester film according to claim 1, wherein the modified polybutylene terephthalate in the substrate film contains polybutylene terephthalate and polytetramethylene glycol.
7. A method for producing an adhesive polyester film, the method being a method for producing the adhesive polyester film according to claim 1, wherein a coating layer is formed by applying an aqueous coating material composed of the polyester resin (A) to at least one side of the substrate polyester film before orientational crystallization, and then the substrate polyester film is orientationally crystallized by stretching in at least one direction and heat treating the substrate polyester film together with the coating layer.
8. The method for producing an adhesive polyester film according to claim 7, wherein an oligomer removal treatment is performed.
9. A laminated film comprising the adhesive polyester film according to claim 1.
10. The laminated film according to claim 9, wherein the adhesive polyester film and another layer are made to adhere to each other through the intermediary of a polyurethane adhesive.
11. The laminated film according to claim 9, wherein a laminate strength of the laminated film after a retorting treatment at 135\xb0 C. for 30 minutes is 200 g15 mm width or more under either ordinary condition or water-wetted conditions.
12. A packaging bag wherein the bag is made of the laminated film according to claim 9.
13. The packaging bag according to claim 12, wherein the bag is made in such a way that the linear tearing direction of the laminated film coincides with an opening direction of the bag.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A manufacturing apparatus of a honeycomb structure having a plugged portion, comprising:
film attaching means for attaching a film to the end face of the honeycomb structure in a state where the side surface portion of the honeycomb structure is not covered, the honeycomb structure having porous partition walls and provided with a plurality of cells partitioned by the partition walls and formed so as to extend through the honeycomb structure from one end face of the honeycomb structure to the other end face thereof;
a table portion having a through hole into which the honeycomb structure is to be inserted;
positioning means for moving the table portion or the honeycomb structure in a state where the honeycomb structure to which the film is attached is inserted into the through hole, and positioning and holding the table portion and the honeycomb structure to attach the remaining portion of the film to the table portion so that the film attached to the end face has a flat state;
hole making means for forming, in the film, holes opened so as to correspond to the openings of a part of the cells;
plugging material supply means for supplying a plugging material having fluidity onto the mask provided with the holes or onto the table portion; and
filling means for filling the cells with the plugging material supplied onto the mask or the table portion.
2. A manufacturing apparatus of a honeycomb structure having a plugged portion, comprising:
a table portion having a through hole into which the end face portion of a honeycomb structure is to be inserted, the honeycomb structure having porous partition walls and provided with a plurality of cells partitioned by the partition walls and formed so as to extend through the honeycomb structure from one end of the honeycomb structure to the other end face thereof;
film attaching means for attaching a film to the side of the surface of the table portion;
positioning means for positioning and holding the table portion and the honeycomb structure so as to attach the film to the end face of the honeycomb structure in a state where the end face portion of the honeycomb structure is inserted into the through hole of the table portion provided with the film attached to the side of the surface of the table portion including a region of the through hole and where the side surface portion of the honeycomb structure is not covered;
hole making means for forming, in the film attached to the end face of the honeycomb structure, holes opened so as to correspond to the openings of a part of the cells, thereby forming a mask;
plugging material supply means for supplying a plugging material having fluidity onto the mask provided with the holes or onto the table portion; and
filling means for filling the cells with the plugging material supplied onto the mask or the table portion.
3. A manufacturing apparatus of a honeycomb structure having a plugged portion, comprising:
a table portion having a through hole into which the end face portion of a honeycomb structure is to be inserted, the honeycomb structure having porous partition walls and provided with a plurality of cells partitioned by the partition walls and formed so as to extend through the honeycomb structure from one end of the honeycomb structure to the other end face thereof;
positioning means for positioning and holding the table portion and the honeycomb structure so that the surface of the table portion has the same plane as that of the end face of the honeycomb structure in a state where the end face portion of the honeycomb structure is inserted into the through hole of the table portion;
film attaching means for attaching a film to the surface of the table portion and the end face of the honeycomb structure after positioning the table portion and the honeycomb structure;
hole making means for forming, in the film attached to the end face of the honeycomb structure, holes opened so as to correspond to the openings of a part of the cells, thereby forming a mask;
plugging material supply means for supplying a plugging material having fluidity onto the mask provided with the holes or onto the table portion; and
filling means for filling the cells with the plugging material supplied onto the mask or the table portion.
4. The manufacturing apparatus of the honeycomb structure having a plugged portion according to claim 1, further comprising:
moving means for moving the table portion or the honeycomb structure after filling the cells with the plugging material;
peeling means for peeling the mask; and
drying means for drying the honeycomb structure.
5. The manufacturing apparatus of the honeycomb structure having a plugged portion according to claim 2, further comprising:
moving means for moving the table portion or the honeycomb structure after filling the cells with the plugging material;
peeling means for peeling the mask; and
drying means for drying the honeycomb structure.
6. The manufacturing apparatus of the honeycomb structure having a plugged portion according to claim 3, further comprising:
moving means for moving the table portion or the honeycomb structure after filling the cells with the plugging material;
peeling means for peeling the mask; and
drying means for drying the honeycomb structure.
7. The manufacturing apparatus of the honeycomb structure having a plugged portion according to claim 1, wherein the table portion has side wall portions which are arranged on opposite sides of the through hole on the surface of the table portion and which are formed so as to project from the surface of the table portion, whereby the plugging material is prevented from leaking from the surface of the table portion.
8. The manufacturing apparatus of the honeycomb structure having a plugged portion according to claim 2, wherein the table portion has side wall portions which are arranged on opposite sides of the through hole on the surface of the table portion and which are formed so as to project from the surface of the table portion, whereby the plugging material is prevented from leaking from the surface of the table portion.
9. The manufacturing apparatus of the honeycomb structure having a plugged portion according to claim 3, wherein the table portion has side wall portions which are arranged on opposite sides of the through hole on the surface of the table portion and which are formed so as to project from the surface of the table portion, whereby the plugging material is prevented from leaking from the surface of the table portion.
10. The manufacturing apparatus of the honeycomb structure having a plugged portion according to claim 4, wherein the table portion has side wall portions which are arranged on opposite sides of the through hole on the surface of the table portion and which are formed so as to project from the surface of the table portion, whereby the plugging material is prevented from leaking from the surface of the table portion.
11. The manufacturing apparatus of the honeycomb structure having a plugged portion according to claim 5, wherein the table portion has side wall portions which are arranged on opposite sides of the through hole on the surface of the table portion and which are formed so as to project from the surface of the table portion, whereby the plugging material is prevented from leaking from the surface of the table portion.
12. The manufacturing apparatus of the honeycomb structure having a plugged portion according to claim 6, wherein the table portion has side wall portions which are arranged on opposite sides of the through hole on the surface of the table portion and which are formed so as to project from the surface of the table portion, whereby the plugging material is prevented from leaking from the surface of the table portion.