JPS62182023A - Electroless dusting packaging method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Field of Application) This invention involves placing articles such as precision parts that tend to attract dust in a package such as a synthetic resin bag, and simultaneously removing air from the package and wrapping the package. This invention relates to a packaging method for removing dust from the body and from articles.

(Prior Art) Conventionally, many parts such as substrates of precision parts are made of composite resin, and measures must be taken to prevent damage caused by static electricity and dust adhesion. However, it is extremely difficult to apply antistatic treatment to this precision component itself because there is a risk that its resistance value etc. may change. Therefore, we remove static electricity from these precision parts using corona discharge, etc., or store them in a clean room.

Static electricity and dust are removed by handling etc.

During transportation and storage, they were placed in antistatic bags.

(Problems to be Solved by the Invention) However, if precision parts and the like are simply placed in a bag, they tend to move within the bag and air tends to enter. Therefore, the above-mentioned parts etc. were rusted or corroded, and dust removal was also insufficient.

Therefore, one idea is to use a vacuum bag, which is conventionally used in food packaging to prevent corrosion, for items such as precision parts, but if you simply vacuum bag precision parts that are sensitive to static electricity, when you open the bag, Air flows in, and at the same time static electricity is generated due to peeling electrification, which may destroy precision parts or cause dust and dust to re-adhere.

(Means for solving the problem) No charge is generated inside a galvanic material (resistance value IO/r to 1Ω) such as plastic, and a charge is generated only on the surface. If the surface in this state is modified to a resistance value of io'Ω +31 &, and is surrounded by a surface layer having this resistance value, the internal charge will easily come out to the outside.

When this is vacuum-backed with an article such as a synthetic resin inside, the distance between the bag on the surface and the article becomes smaller, and therefore the charge inside the bag is transferred to the surface and there is no electric field inside, forming a so-called Faraday cage. do.

This invention has been made with attention to this point, and an article such as a synthetic resin product that tends to get stiff is stored in the back of a package provided with an antistatic treatment layer on at least the outer circumferential surface, and this package is placed in a nib-suction container, and the air in the container is removed to remove air and dust from the package.
This is an electroless dust removal packaging method in which the opening of the package is then sealed.

(Function) When an article such as an electronic component is placed in a package provided with an antistatic treatment layer on at least the outer circumferential surface as described above, the interior of the package becomes free of any load as described above, and this Even more when the package is vacuum-backed.

This effect becomes noticeable.

When this package is placed in an air suction container and the air inside the container is removed, the suction of air inside the package is delayed compared to the surrounding area, causing the package to swell, causing the surrounding area of the package and the items inside the package to be removed. Dirt and dust attached to the package will peel off because there is no electric field inside the package. This is because static electricity will be generated if the package is not antistatically treated, or because the present invention is antistatically treated, static electricity will not be generated even if the package swells. After that, the air inside the package is removed, and along with this, the air and dust are also expelled.If the package is sealed in this state, the item is packaged with static electricity and dust removed.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

The precision component 1 is placed through the opening 3 into a bag 2 having an antistatic treatment layer on the outer circumferential surface, the bag 2 is placed into an air suction container 4, and the opening 3 of the bag 2 is connected to five heat sealing members. stop,
The lid 6 of the air suction container 4 is closed and sealed. Then, the air inside the container 4 is sucked from the suction lower of the air suction container 4. Then, the air inside the air suction container 4 is removed, which reduces the pressure around the bag 2 and temporarily inflates the bag 2. Since the bag 2 has an antistatic layer on the outer periphery, there is no electric field inside the bag 2, and the dust and dust attached to the outer periphery of the precision parts 1 inside the bag 2 are peeled off by the bulge of the bag 2, and the bag 2 Floating within. However, since the air in the air suction container 4 continues to be suctioned, the air in the bag 2 is then released all at once, and dust and dirt are also discharged from the bag 2 along with this air.

Then, the opening 3 of the bag 2 is thermally insulated by the heat seal member 5. As a result, the precision parts 1 are vacuum-backed with the dirt and dust inside the bag 2 removed, as shown in FIG.

Furthermore, when performing vacuum backing as in the above embodiment, as shown in FIG. Rust effects etc. are exhibited over a very long period of time.

In the above embodiment, the band formation prevention treatment layer is formed only on the outer peripheral surface of the bag 2, but the layer is not limited to this, and may be formed on both the inner and outer surfaces of the bag 2. Further, although the bag 2 is used in the above embodiment, it is not limited to the bag, and any suitable packaging body may be used.

(Effects of the Invention) The present invention provides the above-mentioned manufacturing method, and when a package containing an article is placed in an air suction container and the air inside the container is removed, the air inside the package is suctioned from the surrounding area. Due to the delay, the package swells. At this time, since an antistatic layer is provided on at least the outer circumferential surface of this bag, there is no electric field inside the package, and when the package swells, no static electricity is generated, and the momentum of the bulge causes the items inside the package to The dirt and grime that had adhered to it will peel off and become stuck inside the package. Immediately after the dust and dirt are trapped in this way, the air inside the package is sucked out, and the dust and dirt are taken out of the package along with the air. Therefore, in this method, dust and dirt inside the package are completely removed. Furthermore, since the package is vacuum hacked in this state, dust is removed from the inside of the package and the product remains new.

In addition, since the package has an antistatic treatment layer, static electricity is not generated during the vacuum bagging process, and the dust and dirt can be easily peeled off.

Further, even when the package is opened and the article is taken out, the antistatic treatment layer on the outer periphery of the bag prevents peel-off charging from occurring due to the opening of the package.

As described above, according to the method of the present invention, it is possible to easily and reliably remove dust and static electricity from packaging an article in a package, and even during packaging, the packaged article may not be affected by static electricity or adhesion of dust or dust. can be prevented.

[Brief explanation of drawings]

Figures 1 to ≠ are respectively plug drawings of the manufacturing method of this invention;
FIG. 5 is a cross-sectional view of a package manufactured by the method of the present invention, and FIG. 6 is a cross-sectional view of a package manufactured by another embodiment of the present invention. In the figure, 1 is a precision part, 2 is a bag, 4 is an air suction container,
6 is a lid, and 8 is a mount.

Claims (1)

[Claims] An article such as a synthetic resin product to which dust easily adheres is stored in a package provided with an antistatic treatment layer on at least the outer peripheral surface,
Electroless dust removal characterized by placing the package in an air suction container, removing air from the package and removing dust, and then sealing the opening of the package. Packaging method.