Laminated tube container
The laminated tube container has a tube body that includes a light blocking layer between an innermost layer and an outermost layer made of resin. The tube body has a butted portion in which both side edges of a laminated sheet constituting the tube body butt against each other and a reinforcing tape portion provided on an inner surface of the tube body along the butted portion. The reinforcing tape portion has a pair of resin layers and an intermediate layer that includes an aluminum layer and is disposed between the pair of resin layers.
1. A laminated tube container comprising a tube body that comprises a light blocking layer between an innermost layer and an outermost layer made of resin, wherein
the tube body comprises:
a butted portion in which both side edges of a laminated sheet constituting the tube body are butted against each other; and
a reinforcing tape portion provided on an inner surface of the tube body along the butted portion, the reinforcing tape portion comprising:
a pair of resin layers; and
an intermediate layer that comprises an aluminum layer and is disposed between the pair of resin layers,
wherein the intermediate layer comprises a polyethylene terephthalate layer.
2. The laminated tube container according to claim 1 , wherein on both sides of the reinforcing tape portion are provided with a resin cover portion configured to cover both side edges of the intermediate layer.
3. The laminated tube container according to claim 2 , wherein the cover portion is integrally provided with at least one of the resin layers.
4. The laminated tube container according to claim 1 , wherein the innermost layer and the outermost layer of the tube body are made of polyethylene, and each of the pair of resin layers of the reinforcing tape portion is a polyethylene layer.
5. The laminated tube container according to claim 1 , wherein the light blocking layer is an aluminum layer.
6. The laminated tube container according to claim 1 , wherein one end of the tube body is integrally provided with a resin head having a shoulder and a mouth portion protruding from the shoulder; and another end of the tube body is crushed flat and closed.
7. A laminated tube container comprising a tube body that comprises a light blocking layer between an innermost layer and an outermost layer made of resin, wherein
the tube body comprises:
a butted portion in which both side edges of a laminated sheet constituting the tube body are butted against each other; and
a reinforcing tape portion provided on an inner surface of the tube body along the butted portion, the reinforcing tape portion comprising:
a pair of resin layers; and
an intermediate layer that comprises an aluminum layer and is disposed between the pair of resin layers,
wherein on both sides of the reinforcing tape portion are provided with a resin cover portion configured to cover both side edges of the intermediate layer, and wherein a color of the cover portion is different from a color of the resin layer on a side exposed to an inside of the tube body and a color of the intermediate layer.
8. The laminated tube container according to claim 7 , wherein the innermost layer and the outermost layer of the tube body are made of polyethylene, and each of the pair of resin layers of the reinforcing tape portion is a polyethylene layer.
9. The laminated tube container according to claim 7 , wherein the intermediate layer comprises a polyethylene terephthalate layer.
10. The laminated tube container according to claim 7 , wherein the light blocking layer is an aluminum layer.
11. The laminated tube container according to claim 7 , wherein one end of the tube body is integrally provided with a resin head having a shoulder and a mouth portion protruding from the shoulder; and another end of the tube body is crushed flat and closed.