JPH0232990A - Hermetical sealing of hard disc package - Google Patents

Abstract

PURPOSE:To contrive the improvement of film strength and dust proofness by sealingly covering a case for holding hard discs with an aluminum laminate film into the form of a bag, evacuating air from a baglike aluminum laminate film and filling the same with an inert gas. CONSTITUTION:In a clean room, a basket 2 holding a plurality of hard discs 1 at equal spaces is placed in containing portion 4 of a case 3 and, with the opening of this containing portion 4 covered with a lid 5, the basket 2 is sealed in the case 3. The case 3 enclosing a plurality of hard discs 1 is then covered with a baglike aluminum laminate film 10 and one end 10a thereof is heat sealed. The baglike aluminum laminate film 1 enclosing the case 3 is admitted into a packaging machine 20, whereby, after evacuation of air therefrom, the aluminum laminate film 10 is filled with a nitrogen gas as inert gas. The other end 10b thereof is thereafter heat sealed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for hermetically packaging a hard disk, such as a magnetic disk, which is used by being fixed to a spindle of a disk drive device, for example.

[Summary of the Invention] This invention provides a hard disk hermetic packaging method, which includes: covering and sealing a storage case containing a hard disk in a bag shape with an aluminum laminate film, and then removing air from inside the bag-shaped aluminum laminate film. By filling it with inert gas.

Adhesion of dust, dust, etc. at the level of a few tenths of a micrometer, and oxidation.

It is designed to protect the hard disk from moisture-absorbing environments over time.

[Prior Art] For example, magnetic disks (hard disks) that are used by being fixed to the spindle of a disk drive device do not like the adhesion of dirt, dust, etc. on the level of a few tenths of a micrometer, so when transporting the hard disk to the disk drive manufacturer, it is difficult to , it is required that the hard disk be packaged in a sealed packaging method that prevents outside air from coming into contact with the hard disk over time, and then used for transportation.

The conventional sealed packaging method for under-bar disks involves storing a basket holding multiple hard disks so that they do not touch each other in a storage case, placing the storage case in a plastic film bag, sealing it, and then removing the bag. I was trying to remove the air inside (vacuum).

[Problems to be Solved by the Invention] However, in the conventional sealed packaging method for hard disks, the plastic film tends to tear easily, and the interior of the plastic film bag is not completely vacuumed, resulting in poor sealing. However, there were disadvantages in that dust and dirt could easily get into the bag and adhere to the hard disk by the time it reached the disk drive manufacturer, and that moisture could easily get in through the film during transportation.

SUMMARY OF THE INVENTION Accordingly, the present invention provides a hermetically sealed packaging method for hard disks that has excellent dustproof properties, does not cause heat absorption from the outside air, and can prevent oxidation and the like.

[Means for Solving the Problems] The hard disk hermetically sealed packaging method of the present invention covers a storage case containing a hard disk in a bag shape with an aluminum laminate film and seals it, and then seals the storage case in which the hard disk is stored. It is characterized by removing the air and filling it with an inert gas such as nitrogen (N) gas.

[Function] The air inside the bag-shaped aluminum laminate film is removed and inert gas is filled in, which improves the strength of the film and improves dust resistance, reducing the influence of outside air and preventing heat absorption, oxidation, etc. is definitely prevented.

[Example code] Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

1 to 5 are hard disks showing one embodiment of this invention! FIG. 6 is an explanatory view showing the steps of the hermetically sealed packaging method up to packaging in order, and FIG. 6 is an enlarged partial sectional view of the aluminum laminate film 10 used in this hermetically sealed packaging method.

This aluminum laminate film 10 has a polyester layer 11 with a thickness of 12 μm from the outside to the inside, an adhesive layer 12. Aluminum layer 13 with a thickness of 9 μm, adhesive layer 1
4. 15. Oriented polyamide layer 15 μm thick.
Polyethylene layer 16. It is formed by laminating linear low-density polyethylene layers 17 with a linear molecular structure, and has both end portions 10a,
10b is formed into an open bag shape. Below, this bag-shaped aluminum laminate film 10 and packaging machine 20 will be described.
A method for sealing and packaging the hard disk 1 will be explained in order using the following.

First, in a clean room or the like of a manufacturing factory that manufactures hard disks 1, as shown in FIG. The opening of the case body 4 is closed with a lid 5 to seal the basket 2 inside the storage case 3.

Next, as shown in FIG. 2, the storage case 3 containing the plurality of hard disks 1 is covered with a bag-shaped aluminum laminate film 10, and one end 10a of the film is sealed by thermal bonding or the like.

Then, as shown in FIG. 3, the bag-shaped aluminum laminate film l with the storage case 3 sealed is put into the packaging machine 20, the air inside the bag-shaped aluminum laminate film l is removed, and the bag-shaped aluminum laminate film l is vacuum bowed. , nitrogen (N, ) gas is filled as an inert gas. After that, the other end 10b
Seal and seal with heat adhesive, etc.

In this way, the aluminum laminate film 10 containing the hermetically sealed storage case 3 is placed in a small box 30 and sealed, and the small box 30 is placed in a predetermined number of large boxes 31, as shown in FIG. Put it in and pack it.

According to the hermetically sealed packaging method for the hard disk 1 of the embodiment described above, since the air inside the bag-shaped aluminum laminate film 10 is removed and N and gas are filled in, the film temperature is improved by 41 degrees and the packaging is reduced to the level of a few tenths of a micrometer. Dust, dust, etc. are prevented from entering the storage case 3 and adhering to the hard disk l, and dustproofness is significantly improved. In addition, the aluminum laminate film 10 can block intake and exhaust from the outside air, heat absorption, etc., and moisture etc. do not occur. Furthermore, inert N is added inside the bag-shaped aluminum laminate film 1.
Since the hard disk 1 is filled with gas, oxidation and the like of the hard disk 1 can be reliably prevented.

According to the above embodiment, nitrogen (N,
) gas was used, but not limited to this N gas, CO, gas, etc. may be used. Further, the aluminum laminate film 10 may be a complete bag with only one end open, or a sheet-like film may be used to cover the storage case 3 and then sealed on all sides by heat welding or the like. You can do it like this.

[Effects of the Invention] As described above, according to the present invention, a storage case containing a hard disk is covered with an aluminum laminate film in a bag shape and sealed, and then the air inside the bag-shaped aluminum laminate film is removed. Since the inert gas is sealed, the film strength can be improved and the dustproof property can be significantly improved. In addition, since the storage case inside the aluminum laminate film is immersed in inert gas, the influence of outside air is reduced, preventing the generation of moisture inside the bag-shaped aluminum laminate film, and protecting the hard disk from the mixed environment over time. In addition to protecting the hard disk, oxidation and the like of the hard disk can be prevented over time.

[Brief explanation of the drawing]

FIGS. 1 to 5 are explanatory diagrams showing step by step the steps of a hard disk hermetically sealed packaging method according to an embodiment of the present invention, and FIG. 6 is an illustration of an aluminum laminate film used in this hard disk hermetically sealed packaging method. It is an enlarged partial sectional view. 1...Hard disk, 3...Storage case, 10.
...Aluminum laminate film, N, ...Inert gas. 1. l・ Figure 1 Figure 1I4 Figure 2 Figure 5 Figure 3 Figure 6

Claims (1)

[Claims] (1) A hard disk characterized in that a storage case containing a hard disk is covered in a bag-like form with an aluminum laminate film and sealed, and then the air inside the bag-like aluminum laminate film is removed and an inert gas is filled. hermetically sealed packaging method.