JPS5894496A - Electric discharge recording sheet - Google Patents

Abstract

PURPOSE:To provide the titled sheet which is inexpensive and easy to tear in a predetermined direction, free from lowering of insulation, by a method wherein a plastic sheet material is stretched, and thereafter a vapor-deposited layer having a roughened surface is produced on one side of the sheet material to form a vapor-deposited layer to obtain diffused reflection of rays. CONSTITUTION:After stretching the plastic sheet material 11 with different stretching ratios in longitudinal and transverse directions, one side of the sheet material 11 is minutely roughened by a physcal means such as sand blasting or a chemical means such as etching to produce a matted part 4. Then, a metal such as aluminum or the like is vapor-deposited on the outside surface of the matted part 4 by a vacuum deposition method to produce a vapor-desposited film 13, thereby obtaining the objective sheet 10. When the film 13 is directed upwards and a high voltage is impressed by a discharging electrode in a manner of producing dots in a character form while scanning the electrode in the width direction of the paper, the film 13 is broken, and the character form is developed on the plastic sheet.

Description

[Detailed description of the invention] This invention is preserved and further detailed in the discharge recording sheet.

A discharge recording sheet is coated on the sheet with a rough vapor-deposited film used for non-impact recording such as discharge.

Hepary et al. 01970 uses an electric discharge force to record a non-skillful attack.
It is stated in the US% statement dated December 22nd,
As a recording paper conveniently used in the seed aging method, filler particles, colored particles, and a binder are coated on an insulating sheet material such as paper, polyethylene terephthalate, or polypropylene, as shown in Figure 1. Generally, a W vapor-deposited film 2 is formed on black matte paper 1, and in the former case, filler particles with a large particle size and colored particles with a small particle size are evenly coated on the sheet member with a binder t. In the latter case, it is necessary to treat the paper to prevent the dispersion of adhering water, structural water, etc. during vapor deposition, and the surface of the discharge point is It is hard to see because it becomes a grayish black color because it flops, and it is impossible to form any matte surface or pattern it, making it time-consuming to manufacture and difficult to mass produce, resulting in high costs. In addition, synthetic I# resin film is generally weak and when it is torn from a place where it is stored, it runs away in the direction of tearing and wrinkles, making it difficult to cut.

1+ Generally, synthetic resin films are stretched to improve their physical properties, especially biaxially stretched films to strengthen their stiffness and
Products treated with biaxial stretching, which improves transparency, barrier properties, and heat shrinkability, are even more difficult to tear than non-stretched products, and are difficult to tear with slightly rough edges. It does not tear, and even if it tears, the direction of tearing is not constant because it is stretched in both axes. In particular, it is impossible to cut the material by hand without using a synthetic resin film company knife that has high mechanical stability and dimensional stability, such as polyester or polyolefin.

The purpose of this invention is to eliminate the above-mentioned nine defects, and the first feature of this invention is that after a plastic sheet material is stretched at different stretching rates in the longitudinal and lateral directions, the sheet is One surface of the material was matted into a fine rough surface by physical or chemical means, and a vapor-deposited Mt layer was formed on the outer surface of the matted sheet material to form a light diffuse reflection vapor-deposited layer.1% Yr. An object of the present invention is to provide a discharge recording sheet that can be used as an image.

In addition, the feature of @2 of this invention is that after stretching a plastic sheet material at different stretching rates in the longitudinal and lateral directions, one side of this sheet material is stretched with a physical or chemical fishing rod.
A sheet on the opposite side of the vapor-deposited surface of the sheet material, which is matted to have a finer rough surface than K, and vapor-deposited g is layered on the outer surface of the matted pre-P sheet material to form a light diffused reflection vapor-deposited layer. A discharge recording sheet characterized by pasting paper onto a material)? It is about providing.

An embodiment of the present invention shown in the drawings will be described in detail below. In the discharge recording sheet 10 of the present invention shown in FIG. 2, a plastic sheet material 11 is stretched at different stretching ratios in the longitudinal and lateral directions, and then one side of the sheet material is sandblasted.
The matted portion 4 is formed into a finely roughened surface by physical means of embossing or chemical means of etching.

The vapor deposition 1113 of the discharge recording sheet 10 of the present invention is formed by vapor depositing a metal such as At, an alloy, or a mixed material using a conventional vacuum deposition method. For example, a vacuum evaporator 11vr is installed in the center of each 12 m long decompression chamber in front of a continuous vacuum evaporation equipment, and a heater whose heating temperature can be controlled from the outside, a crucible, and a guide plate that guides the evaporated metal to the film surface are installed in the evaporation chamber. The line in the vacuum deposition chamber is set at 1 o-' Torr, for example.
It is designed to maintain a true 9 degree angle of 8 degrees, and At I Au t Af , C placed in the crucible under the vacuum.
u I Sn I Zn.

Single metals such as Cr, Ni, S@, Ti, etc.Ni-Cr#N1-Fe1Fe-Co, Au-
At -Cu Cape's alloys are heat resistant 21 black 7-#
When heated with a heater made of energy to evaporate it, it is deposited.

Figure S is an enlarged cross-section of a plastic finely roughened surface 11A formed by sandblasting or the like on a synthetic resin film U using the above-mentioned process. , fine rough surface 11
The metal vapor deposition layer 13 follows the fine irregularities formed on A.
Since fine irregularities are also formed on the 0 surface, the light incident on the surface of the metal vapor deposited layer is diffusely reflected extremely effectively even in this state, so that the surface of the vapor deposited film exhibits a pure white color.

This discharge recording sheet 10 is the same as the discharge recording paper of the conventional structure. ia% As shown in FIG. 2, the vapor deposited film 13 is destroyed by applying a high voltage with the electrode in a dot shape while scanning the discharge electrode aYr in the width direction of the sheet, and the vapor deposited film 13 is destroyed. 1
1 You can see the glyph shape through f.

When the plastic sheet 11 is stretched at different stretching ratios in the transverse direction, for example, by biaxial stretching, the longitudinal stretching ratio is made smaller than the transverse stretching ratio, thereby making it easier to cut in the lateral direction. It is.

Regarding specific stretching methods, known biaxial stretching methods include, for example, a tenter set and a tube method. Among these methods, the tube method extrudes the molten polymer into a tube shape from a ring die with the same extrusion as the inflation method.
After being rapidly cooled in a cooling bath, it is subsequently heated with infrared rays, and either air is introduced inside and internal pressure is applied, or the outside is depressurized and stretched in the transverse direction. At the same time, tension is applied in the longitudinal direction to perform simultaneous biaxial stretching.

After stretching, fold it with nip rolls and St! Alternatively, the film may be heated again with infrared rays and compressed air is forced into the film to stretch and stretch the film again, folded again with nip rolls and heat treated with infrared rays to crystallize and stabilize the molecular orientation. Finally, fold the tube flat or cut the tube into two to obtain two stretched films.

In addition, as a means of providing unevenness on one side of the plastic sheet material, physical means such as sandblasting and embossing, or chemical means such as etching, for example, forming unevenness on the surface by subjecting the film to high temperature treatment using a solvent. There is.

Furthermore, when a colored plastic sheet material is used as the plastic sheet material and paper is pasted on the other side of the sheet material, the colored plastic sheet [through which the character shape is seen through and the character shape becomes visible] is used. When a transparent plastic sheet material is used and a colored layer is pasted on the other side of the sheet material, the printed character portion is transparently colored and the engravings are deep $1:
becomes.

When the plastic sheet material is a colored transparent plastic sheet material, a colored layer is provided on the other side of the sheet material, and paper is further attached, the color can be mixed and synthesized with the color of the colored layer.

In addition, even when the front V plastic sheet material is replaced with a transparent plastic sheet material and a transparent t-shirt or colorless paper is pasted on the other side of the sheet material, the incident light on the gold-sulfur vapor-deposited surface is extremely effectively reflected. Therefore, the surface of the deposited film exhibits pure platinum.

As described above, according to the present invention, after stretching the plastic sheet material 1 in the longitudinal and lateral directions at different stretching rates, one surface of the sheet material is matted into a finely roughened surface by physical or chemical means, The vapor deposited wA was layered on the outer surface of the matted sheet material to form a vapor deposited film layer that reflects light rays diffusely, so that it can be easily reflected in a predetermined direction. i! This makes it easier to move.

Furthermore, this invention does not require resin coating treatment, which is the aging process (preventing the release of moisture and gas in the paper) in metallized paper, and it does not have the same hygroscopicity as paper, causing it to buckle and curl. There is no problem and there is no insulation deterioration. Furthermore, if paper is pasted on the opposite side of the sheet material to the vapor deposition surface, the resin sheet can be made thinner than paper, making it possible to reduce the winding diameter, which is extremely advantageous for patch-type vapor deposition in vacuum chambers that are easy to use. , included in the paper n
There is no deterioration in the quality of the deposited film due to acid or alkali, and there is no increase in resistance associated with it, and there is no odor emission during discharge recording, which is a common problem with paper deposits. If your back becomes strong and you tear it from the place where you need it, pull 11.
When cutting, there are no wrinkles caused by running away in the direction of F5.
'rl! It has the effect of being able to be easily torn in a predetermined direction from a certain point.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a conventional discharge recording sheet, FIG. 2 is a sectional view of a discharge recording sheet according to an embodiment of the present invention, FIG. The figure is an enlarged sectional view of the discharge recording sheet of the present invention, and FIG. 5 is an enlarged sectional view of the discharge recording sheet of the second embodiment. 4...Light ray diffused reflection matting part, 10...Discharge recording sheet), 11...Plastic sheet material, U...Paper,
13...Fine rough surface vapor deposited film mark 2

Claims (2)

[Claims] (1) After stretching a plastic sheet material at different stretching rates in the longitudinal and lateral directions, one side of this sheet material is matted into a finely roughened surface by physical or chemical means,
1. A recording sheet characterized in that a vapor-deposited film is formed on the outer surface of the matted sheet material to form a vapor-deposited film layer that reflects diffused light. (2) In the first aspect of the claim, paper t-J&! is applied to the sheet material on the opposite side of the vapor deposition surface of the sheet material. A discharge recording sheet that assumes 1% mold when it arrives.