JPH0123959Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to non-static envelopes, and more specifically to soft synthetic resin films, synthetic paper, paper coated or laminated with synthetic resin, and other similar materials. This invention relates to a non-static envelope formed by applying MCS treatment, which will be described in detail later, to an envelope formed of a dielectric material such as a composite material 4, which is a film laminated with a different material such as aluminum foil.

[Prior Art] In the past, envelopes made of plastic film were inconvenient because they clung to the hands when handling the envelopes, which often caused friction.

If an attempt is made to eliminate this inconvenience by kneading an antistatic agent into the resin used as the material of the film that is normally used, most of the antistatic agent will go inside the resin and will not be exposed to the surface, resulting in a decrease in antistatic efficiency. is extremely bad.

Moreover, using a large amount of antistatic agent causes a problem in that the cost of materials is too high for inexpensive envelopes.

[Problems to be Solved by the Invention] The object of the present invention is to provide an envelope that has an efficient antistatic effect using a small amount of antistatic agent.

[Means for solving the problem] The inventor of the present invention focused on the fact that the antistatic effect of disposable envelopes does not need to last for a long period of time, and created an antistatic agent that is present as a thin film only on the surface of the film. The inventors came up with the idea that by doing so, it is possible to efficiently prevent static electricity, and thus came up with the present invention.

In other words, the present invention is applicable to synthetic resin films, synthetic papers, coated paper obtained by coating or laminating paper with synthetic resins, and other composite materials in which synthetic resin films are laminated with other films, different materials, aluminum foil, etc. The present invention provides a non-static envelope made of cloth or the like, the surface of which is treated with ultrafine sprayed antistatic agent to provide a thin film of the antistatic agent.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail based on embodiment figures.

As a first embodiment, as shown in FIG. 1, a tube 1 made of synthetic resin film or synthetic paper has front and rear surfaces
A sprayed antistatic agent (static charge removing agent) is brought into contact with the countless uneven surfaces 2 observed under a microscope on the surfaces of a and 1b, and a uniform and continuous coating of 0.01~
Extremely thin film treatment film 3 of approximately 0.1 μm [hereinafter referred to as
A molecular coat system (abbreviated as ``MCS treated membrane'') was installed.

This MCS treated membrane is manufactured by Tokyo Copal Chemical Co., Ltd.
This can be carried out by a processing device, which passes the film through a processing chamber in which a spray of antistatic agent made into fine particles by an ultrasonic nozzle is suspended, and brings the film into contact with the spray. The droplets are deposited as a thin film, which is then heated and dried to coat the MSC-treated film.

By welding and cutting the tube 1 at appropriate intervals, an upper opening 5 with a continuous sealing piece 8 is formed, and a non-static envelope 7 is formed as a bottom part 6. A side cross section is shown, and an enlarged view within the chain line in FIG. 3 shows the body to which the MCS treatment film 3 has been applied.
The figure shows a state in which the MCS treated film surfaces 3, 3 applied to the tube 1 of synthetic resin or synthetic paper of the first embodiment are further coated or laminated 4 with a synthetic resin.

The base material forming the envelope is a sheet material 1' whose front and back uneven surfaces 2a and 2b are coated with a synthetic resin or laminated 4 on the MCS film-treated surfaces 3.
A sealing piece is provided on the front side of the coated sheet material 1' on the upper edge of the envelope main body, and the rear surface continuous from the left and right edges of the main body and the bottom surface continuous from the lower edge are folded back to the rear surface and overlapped and adhered. The non-electrostatic envelope of the present invention may be formed by forming an envelope body formed by using the above method.

[Function] The non-static envelope of the present invention has the above-mentioned structure.
As in the embodiment, the MCS treated surfaces 3, 3 applied to the front and rear surfaces 2, 2 of the envelope body 7 have a slightly sticky and anti-slip effect due to the antistatic agent film. It is convenient for sorting and is also suitable for stacking and storing.As in the second embodiment, the treated surface that has been subjected to the MCS coating treatment 3 of the first embodiment is further coated with a synthetic resin. Another advantage of laminated envelopes is that the MCS film treatment surface is strengthened, resulting in stronger envelopes.

In general, there are sheet materials in which a static electricity remover is coated on the surface, or the same static electricity remover is mixed and kneaded into a base material such as a synthetic resin, but as in the present invention, a spray-like It is difficult to uniformly apply the static electricity remover to form a continuous ultra-thin film, and in general, the static electricity remover is distributed in spots and the effect is limited to local charge removal. Although it is small, in the non-static envelope of the present invention, the MCS treatment is applied as mentioned above, and the treated surface is uniformly coated with a continuous ultra-thin charge removal film 3 that follows the uneven surface, so static electricity is reduced. Even if a polarized charge is generated, there is an advantage that the charge disappears very quickly.

Even if the MCS-treated surface of the envelope of the second embodiment is further coated with a synthetic resin or laminated, the MCS treatment effect will appear in the same manner as described above, and no new charges will be generated, resulting in a long-term life. It has an anti-static effect, which prevents surrounding dust from adhering to the envelope body, and also prevents things from clumping when placed inside the envelope, making it a practical product that truly prevents envelopes from getting dirty. This is an excellent non-static envelope with high durability.

[Effects of the invention] The envelope of this invention has a very good antistatic effect, so when used as an envelope, it is very convenient for handling such as writing addresses, storing documents, sealing, etc. , there is also the advantage of reducing the amount of antistatic agent used.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and as a first embodiment, Fig. 1 is a front view of the same, Fig. 2 is a side sectional view taken along the line A-A, Fig. 3 is an enlarged view within the chain line, and Fig. 3 is an enlarged view of the same. As the second embodiment, Fig. 4 is a front view of the same, Fig. 5 is a sectional view of the same side taken along line B-B, and Fig. 6 is an enlarged view within the same chain line, and the symbols in the figures are 1, 1'... Base material, 2... Same uneven surface, 3...
...MCS treated membrane, 4...Coating or laminating part, 5...Envelope opening, 6...Bottom part, 7
. . . Non-electrostatic envelope, 8 . . . shows the same tongue piece.

Claims (1)

[Scope of utility model registration request] Synthetic resin film, synthetic paper, coated paper made by coating or laminating paper with synthetic resin, other synthetic resin films and other films,
Alternatively, the envelope is made of a composite fabric made of different materials, aluminum foil, etc., and the surface of the envelope is treated with an ultrafine atomized antistatic agent to form a thin film of the antistatic agent. A non-static envelope characterized by: