Packaging material for and packaged product of medical supplies and the like

1. A packaging material, comprising a substrate, and an inner sealing layer comprising a polyolefin layer and an aqueous dispersion-type amorphous polyester resin layer successively disposed on the substrate,

wherein said aqueous dispersion-type amorphous polyester resin layer contains an anionic surfactant or an amphoteric surfactant and an organic solvent,

wherein said aqueous dispersion-type amorphous polyester resin layer is substantially free from an organic solvent having a boiling point of at most 100° C., as represented by a residual solvent content of below 8 mg/m 2 measured according to an evaporation test at 80° C.,

wherein said acqueous dispersion-type amorphous polyester resin layer comprises a combination of an amorphous polyester resin having a glass transition temperature of at least 40° C. and an amorphous polyester resin having a glass transition temperature below 40° C.,

wherein the packaging material is in the form of a bag.

2. The packaging material according to claim 1 , wherein said substrate comprises at least an oxygen and/or moisture barrier layer, and a base layer, below the polyolefin layer.

3. The packaging material according to claim 2 , wherein the barrier layer comprises at least one selected from the group consisting of aluminum foil, ethylene-vinyl alcohol copolymer layer, vapor deposited film of inorganic material, and polypropylene film.

4. The packaging material according to claim 2 , wherein the base layer comprises at least one selected from the group consisting of paper, cellophane, polyester, nylon and polypropylene.

5. The packaging material according to claim 1 , wherein said anionic surfactant comprises an alkyl sulfate-type or a polyoxyethylene alkyl ether acetate-type anionic surfactant.

6. The packaging material according to claim 1 , wherein the amorphous polyester resin layer is formed on the polyolefin layer via an anchor coating layer.

7. A packaging product, comprising: the packaging material according to claim 1 , and a particulate medical supply or a health foodstuff sealed up in the packaging material.

8. The packaging material according to claim 3 , wherein the base layer comprises at least one selected from the group consisting of paper, cellophane, polyester, nylon and polypropylene.

9. The packaging material according to claim 2 , wherein said anionic surfactant comprises an alkyl sulfate-type or a polyoxyethylene alkyl ether acetate-type anionic surfactant.

10. The packaging material according to claim 3 , wherein said anionic surfactant comprises an alkyl sulfate-type or a polyoxyethylene alkyl ether acetate-type anionic surfactant.

11. The packaging material according to claim 4 , wherein said anionic surfactant comprises an alkyl sulfate-type or a polyoxyethylene alkyl ether acetate-type anionic surfactant.

12. The packaging material according to claim 2 , wherein the amorphous polyester resin layer is formed on the polyolefin layer via an anchor coating layer.

13. The packaging material according to claim 3 , wherein the amorphous polyester resin layer is formed on the polyolefin layer via an anchor coating layer.

14. The packaging material according to claim 4 , wherein the amorphous polyester resin layer is formed on the polyolefin layer via an anchor coating layer.

15. The packaging material according to claim 5 , wherein the amorphous polyester resin layer is formed on the polyolefin layer via an anchor coating layer.

16. A packaging product, comprising: the packaging material according to claim 2 , and a particulate medical supply or a health foodstuff sealed up in the packaging material.

17. A packaging product, comprising: the packaging material according to claim 3 , and a particulate medical supply or a health foodstuff sealed up in the packaging material.

18. A packaging product, comprising: the packaging material according to claim 4 , and a particulate medical supply or a health foodstuff sealed up in the packaging material.

19. A packaging product, comprising: the packaging material according to claim 5 , and a particulate medical supply or a health foodstuff sealed up in the packaging material.

20. A packaging product, comprising: the packaging material according to claim 6 , and a particulate medical supply or a health foodstuff sealed up in the packaging material.

21. A packaging product, comprising a bag of a packaging material and a particulate medical supply sealed up in the bag,

wherein the packaging material comprises a substrate, and an inner sealing layer comprising a polyolefin layer and an aqueous dispersion-type amorphous polyester resin layer successively disposed on the substrate,

wherein said aqueous dispersion-type amorphous polyester resin layer contains an anionic surfactant or an amphoteric surfactant and an organic solvent,

wherein said aqueous dispersion-type amorphous polyester resin layer is substantially free from an organic solvent having a boiling point of at most 100° C., as represented by a residual solvent content of below 8 mg/m 2 measured according to an evaporation test at 80° C.,

wherein said aqueous dispersion-type amorphous polyester resin layer comprises a combination of an amorphous polyester resin having glass transition temperature of at least 40° C. and an amorphous polyester resin having a glass transition temperature below 40° C.

22. The packaging product according to claim 21 , wherein the particulate medical supply has a diameter of at most 3 mm.

23. The packaging product according to claim 21 , wherein the particulate medical supply comprises spherical adsorptive carbon particles.