| 摘要 |
PURPOSE: To reliably prevent volatilization of an organic solvent even if a product containing an organic solvent is contained in a squeeze tube container to prevent the product from changing in properties by a method wherein gas impermeability is imparted to a full inner surface of a tube head of the squeeze tube container molded out of a polyolefin resin. CONSTITUTION: A tube head of a squeeze tube container consists of a thin-wall tubular barrier material 20 molded out of a saponified substance of an ethylene-vinyl acetate copolymer and integrally provided with a small-diameter tube part 22 fitted to an inner periphery of a squeeze spout, an end wall part 21 formed along an inner surface of an end wall, a large-diameter tube part 23 fitted to an inner periphery of a tube wall, and a flange part 24 of a diameter larger than that of the tube par overhanging outward from the periphery of the tube part and a head member molded outside the tubular barrier material with a tube wall longer rearward than the large-diameter tube part of the tubular barrier material. The flange part 24 of the tubular barrier material is bitten into the head member. The rear end of the large-diameter tube part of the tubular barrier material is fixed by an inward thick-wall part 14 formed at the rear part of the tube wall of the head member positioned rearward of the rear end. |
