JPH0648460A - Rust preventive package paperboard - Google Patents

Abstract

PURPOSE:To obtain an excellent effect of rust prevention of packaged metal by a method wherein the film containing volatile rust preventives is attached to packaging paperboard in order for the packaged metal article to be surrounded with the rust preventives volatilizing slowly from the film at the time of the packaging. CONSTITUTION:The rust preventive paperboard consists of a water resisting base paperboard 10 (regenerated paper may be used), a polyolefin film 12 attached to one side of the paperboard 10 and a volatile rust preventive film 14 attached to the polyolefin film 12. The volatile rust preventive film 14 is formed of the polyethylene film containing the volatile rust preventives. A packaging case is formed of the rust preventive paperboard with the volatile rust preventive film 14 inward and the metal article is placed and sealed therein. In this condition, the packaged article is surrounded with the rust preventive volatilizing slowly from the volatile rust preventive film 14, thereby obtaining an excellent rust preventive effect.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to paperboard used for packaging.

[0002]

2. Description of the Related Art Conventionally, when packaging metals such as automobile parts for export, etc., they are immersed in rust preventive oil (oil containing a rust preventive agent), and then, It is taken out from the antirust oil, drained for about 24 hours, wiped off the residual oil, and then packed in a packing box.

[0003]

However, the packing method as described above is complicated and time-consuming. Also,
When dipping in rust preventive oil or removing oil, the work area is full of rust preventive oil, and the oil adheres to various places to contaminate it. There is also. Further, in the above packaging method, it is necessary to wash the rust preventive oil at the destination of the packaged cargo after the packaging is released, which requires labor and cost. Further, at the time of cleaning, a CFC-based cleaning agent is preferably used, but a CFC-based cleaning agent cannot be used in the future due to global environmental protection. In addition, throwing away the washed anticorrosion oil causes pollution, and there is a problem in processing the oil.

On the other hand, in view of these drawbacks, other packaging methods have been devised. That is, metal is wrapped with a film containing a vaporizable rust preventive, and the metal is packed in a packing box. However, this method still has the following problems. That is, the packing requires a step of wrapping with a film and a step of packing it in a packing box, and the work efficiency is not yet good. Further, if each of the articles is wrapped in a tightly sealed film, a film having a considerably large area is required as compared with the inner surface area of the packaging box, resulting in film waste and cost problems. Further, the film needs to have a predetermined thickness (0.1 mm or more) so as not to be torn, and the material cost and the like are increased accordingly. Moreover, these films produce a significant amount of litter after unpacking, leaving litter disposal problems. This is more remarkable when many thick films are used.

An object of the present invention is to provide a packaging board which can solve the above-mentioned drawbacks.

[0006]

In order to solve the problem, the present invention is characterized in that a film containing a volatile anticorrosive agent is attached to a paperboard body.

[0007]

When the rust preventive paperboard for packaging according to the present invention is packed, the vaporizable rust preventive agent is gradually vaporized from the film, and the vaporized rust preventive agent covers the periphery of the packed article, The rust prevention can be achieved.

[0008]

【Example】

<First Embodiment> Next, a first embodiment of the present invention will be described with reference to FIG. This packaging rustproof paperboard (hereinafter abbreviated as rustproof paperboard) has a paperboard body 10 which is a water-resistant neutral paper (may be recycled paper). Then, on one surface thereof, a polyolefin-based film 12 is attached, and further a vaporizable rust preventive film 14 is attached. The volatile anticorrosive film 14 is formed by mixing a film of polyethylene or the like with a volatile anticorrosive agent. As an example, "Ze
For example, those sold as “rust VCI film” can be applied. The thickness of about 0.05 mm is sufficient.

Then, a packing box is prepared with the side of the rustproof paperboard on which the vaporizable rustproof film 14 is adhered as an inside, and the article is packed in the packing box to be in a sealed state. Then, the vaporizable rust preventive agent gradually evaporates from the vaporizable rust preventive film 14, fills the inside of the packaging box, and the periphery of the packed article is wrapped in the vaporizable rust preventive agent to prevent rust prevention of the article. Is planned.

<Second Embodiment> Next, a second embodiment of the present invention will be described with reference to FIG. This rustproof paperboard has a paperboard body 2
0 on both sides of the polyolefin film 22a, 22
b and the volatile anticorrosive films 24a and 24b are attached.

The anticorrosive paperboard is used as a partition board between a plurality of articles to be packed in the packing box of the first embodiment. Then, a buffering effect between the articles is obtained, and the volatile anticorrosive agent is gradually vaporized from the anticorrosive paperboard, and a higher anticorrosive effect than that of the packaging box of Example 1 alone is obtained.

In Examples 1 and 2, the polyolefin-based films 12, 22a, 22b are not always necessary, and as shown in FIGS.
Evaporative anticorrosion film 14, 24a, 24b for 20
May be directly attached. Also, the paperboard body 10, 2
0 is not limited to mere thick paper, but may be so-called corrugated paper. In addition, it goes without saying that the present invention can be implemented in a mode in which various modifications are made based on the knowledge of those skilled in the art.

[0013]

When the rustproof paperboard for packaging is used for packaging, it is not necessary to immerse the article in rustproofing oil and wash the rustproofing oil after unpacking. Further, in this case, one step is required, and the work efficiency is improved, compared with the case where the article is wrapped with a film containing a vaporizable rust preventive and then packed in a packaging box (two steps are required). Further, as compared with the conventional case, the amount of the vaporizable rust preventive film is small, which is advantageous in cost and the like. Furthermore, since the volatile rust-preventive film is attached to the paperboard body and is not easily broken, it becomes possible to make the volatile rust-proof film thinner, and the material can be reduced accordingly. Further, since the amount of the vaporizable rust preventive film is small as described above, the amount of dust generated is reduced even after unpacking.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view of an anticorrosive paperboard for packaging according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of an anticorrosive paperboard for packaging according to a second embodiment of the present invention.

FIG. 3 is an enlarged cross-sectional view showing a modified example of the first embodiment.

FIG. 4 is an enlarged cross-sectional view showing a modified example of the second embodiment.

[Explanation of symbols]

 10, 20 Paperboard body 14, 24a, 24b Evaporative anticorrosive film

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 591216679 Asahi Container Industry Co., Ltd. 822, Nagasuga, Tomita-cho, Nakagawa-ku, Nagoya, Aichi Prefecture (72) Inventor Ryoji Mori, 1 Toyota-cho, Toyota-shi, Aichi Prefecture Toyota Motor Corporation (72) Inventor Masayoshi Shoji 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Co., Ltd. (72) Inventor Noboru Ogata 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Co., Ltd. (72) Inventor Sekine Akiyoshi 1-3 Kandasudacho, Chiyoda-ku, Tokyo Japan Paper Industry Co., Ltd. (72) Inventor Keiichi Yokota 1-3-3 Kandasudacho, Chiyoda-ku, Tokyo Japan Paper Industry Co., Ltd. (72) Inventor Yoshiharu Rikuta Tokyo 1-9-9 Nihonbashihonmachi, Chuo-ku, Tokyo Within Taiyo Liquefaction Co., Ltd. (72) Inventor Toshiho Shimoda Nihonbashi, Chuo-ku, Tokyo 1-4-9 Honcho Taiyo Liquefaction Co., Ltd. (72) Inventor Shigenao Sasaki 822 Nagasuga, Tomita-cho, Nakagawa-ku, Aichi Prefecture Asahi Container Industry Co., Ltd.

Claims (1)

[Claims] 1. An anticorrosive paperboard for packaging, characterized in that a film containing a volatile anticorrosive agent is adhered to a paperboard body.