JP2718753B2 - Election ballot paper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to election voting for election of members of the Diet, prefectural council members, municipal members and prefectural governors, municipal mayors, and dismissal elections of judges of the Supreme Court. It concerns paper.

The election ballot of the present invention has no blocking, and is easy to perform manually and to perform a counting operation using an election counter.

(Prior art)

Conventionally, as an election ballot, a paper in which an entry field for a candidate's name, notes on voting, and the name of the Election Commission are printed on pulp-based paper has been used.

After the candidate writes the candidate's name in the entry box, the form is folded in two and put into the ballot box.

After the election and voting, the ballot is taken out of the ballot box.
People open the folded ballots in the presence of the Election Commission, sort out the ballots for each candidate name, manually count and count the number of votes for each candidate, and confirm further. Data is also counted using a dedicated election counter.

[Problems of the prior art]

Ballots made of pulp are poorly water-resistant,
When counting by hand, turning the ballot with water on your finger may cause damage. Also, it takes time to open the folded voting paper.

As a paper having water resistance, a biaxially stretched film of a thermoplastic resin containing an inorganic fine powder is used as a base layer, and a monoaxially stretched film of a thermoplastic resin containing an inorganic fine powder is formed on the front and back surfaces of the paper layer. Synthetic paper consisting of a laminated material
No. -40794) and synthetic paper having a polymer layer having an antistatic function on the surface thereof (JP-A-57-149363 and JP-A-57-1534).
No. 84, British Published Patent No. 8515369), and these are sold by Oji Yuka Synthetic Paper Co., Ltd. under the trade names of YUPO FPG, YUPO GFG, YUPO CFG, YUPO SOG and the like.

These synthetic papers not only have water resistance, but the base biaxially stretched film has a large number of fine voids inside, and is lightweight and biaxially oriented. Since the synthetic paper folded and put in the ballot box is naturally released from bending by its elastic recovery force and restores to a sheet shape, when using it as an election ballot, when using pulp paper There is an advantage that it is possible to save the trouble of opening each of the folds to form a sheet.

However, due to its excellent water repellency, hand-turning moisture attached to a finger during manual counting remains on the surface of the synthetic paper, and this water causes the preceding and following voting papers to adhere to each other. It was found that the number of sheets counted by the counting machine was different from the number counted by hand and the number counted by the counting machine.

Further, it has been found that when the sheet is applied to a counter, the sheet is charged by a roll at the time of paper supply and discharge, and the counting of the counter is often stopped.

[Specific means to solve the problems] The above-mentioned drawbacks when using synthetic paper having a biaxially stretched film as a base layer as a voting paper are described by applying an antistatic agent-containing coating agent to the front and back surfaces of the synthetic paper. By drying and providing a coating layer having a charge attenuation of 1.5 seconds or less on the front and back surfaces of the synthetic paper,
Smoothly feeding and discharging paper to the election-only counter, eliminating counting errors.

Since this coating layer has a very small charge decay amount, the ballot paper does not block or stop counting when it is applied to the counter.

That is, the present invention uses a synthetic paper having a biaxially stretched film of a plastic resin film as a base layer as a base paper, applying a coating agent to the front side and the back side of the base paper, and drying and drying each of the front sides. Surface specific resistance, smoothness of coating layer and back coating layer,
Coated paper having a coefficient of static friction, a coefficient of kinetic friction and an amount of charge decay within the following ranges, respectively, The present invention provides an election voting paper having an opacity of 90% or more, which is obtained by printing a column for an elected person on a surface coating layer of the coated paper.

(Synthetic Paper) As the synthetic paper, any synthetic paper having a biaxially stretched film of a thermoplastic resin as a base layer may be used, and a biaxially stretched film of a thermoplastic resin containing 8 to 65% by weight of inorganic fine powder. Even in the case of a single-layer synthetic paper, the biaxially stretched film base material layer is formed by laminating layers each having a uniaxially stretched film of a thermoplastic resin containing an inorganic fine powder on the front and back surfaces thereof. You may. Therefore, all of those described in the aforementioned patent publications can be used.

The microvoids in this synthetic paper facilitate folding,
The biaxial orientation contributes to the restoration of the folded sheet into a sheet. The stretching ratio is generally 4 to 9 times in the axial direction and 4 to 12 times in the transverse direction.

The front and back surfaces of the synthetic paper may be subjected to corona discharge treatment in order to improve the adhesiveness with the coating agent.

 The thickness of the synthetic paper is preferably from 80 to 130 microns.

(Coating Agent) The coating agent applied to the front and back surfaces of the synthetic paper contains, for example, an aqueous resin emulsion, an inorganic fine powder, and a water-soluble polymer having an antistatic function. The inorganic fine powder is used at a ratio of 300 to 2,000 parts by weight, preferably 500 to 700 parts by weight, and the water-soluble polymer (c) is used at a ratio of 0.1 to 5 parts by weight, based on 100 parts by weight of the solid content of the resin. .

The resin aqueous emulsion serves as an organic binder to impart water resistance, a pigment, fixation of a filler, and adhesion of a coating layer to synthetic paper, and the aqueous resin binder used in the present invention is a base material. It may be arbitrarily selected in consideration of the type of thermoplastic resin of a certain synthetic paper material and other conditions, for example, methyl methacrylate-butadiene copolymer rubber latex, polyvinylidene chloride emulsion, ethylene-vinyl acetate -Vinyl chloride copolymer emulsion, styrene-butadiene copolymer rubber latex, vinyl acetate-acrylate copolymer latex, acrylate-styrene copolymer emulsion, ethylene-vinyl acetate copolymer emulsion,
An acrylic resin emulsion or the like is used alone or in combination of two or more.

Next, examples of the inorganic fine powder of the component (b) include calcium carbonate, satin white, silica, titanium oxide, alumina, clay, and aluminum sulfate. Particularly, fillers such as calcium carbonate, titanium oxide, and zinc oxide And pigments such as iron oxide. The particle size of the inorganic fine powder is preferably 15 μm or less, particularly preferably 0.1 to 10 μm. The reason for this is that if the particle size of the inorganic fine powder is 15 μm or more, the surface of the synthetic paper to be obtained becomes rough and the smoothness thereof is deteriorated. The component (b) is for improving printability and whiteness,
It aims at coloring, opacity imparting, surface smoothness, and cost reduction as a filler.

Further, examples of the water-soluble polymer having the antistatic function of the component (c) include polyethyleneimine, poly (ethyleneimine-urea), an ethyleneimine adduct of polyamine polyamide, and a cationic or amphoteric polymer containing a nitrogen atom. This nitrogen-containing water-soluble polymer is obtained by homopolymerizing a nitrogen-containing monomer or copolymerizing these monomers with another copolymerizable monomer.

Specific examples of the nitrogen-containing monomer include the following.

Here, in each formula, R ¹ is hydrogen or a methyl group, R ³ and
R ⁴ is a lower alkyl group (in particular, C _{1 to} C ₄ , especially C ₁ to C ₄ )
C ₂ ), R ⁵ are a saturated or unsaturated alkyl group or benzyl group having 1 to 22 carbon atoms, X ⁻ is a quaternized N ⁺ counter anion (for example, halide (particularly chloride)), and A is a carbon number. 2 to 6 alkylene groups.

This nitrogen-containing water-soluble polymer is quaternary (amphoterized)
Nitrogen-containing monomers (b), (d), (d) ', (f),
(H) ′, (H), (H) ′, (G) are homopolymerized,
Alternatively, it can be obtained by copolymerizing these quaternary nitrogen-containing monomers with other vinyl monomers. Further, the tertiary nitrogen-containing monomers (a), (c), (e), and (h) are homopolymerized,
Alternatively, after copolymerization with other monomers, quaternization or cationization of monochloroacetic acid (salt), propane sultone, propiolactone, etc. with a cationizing agent such as alkyl halide, dimethyl sulfate, benzyl halide monochloroacetate, etc. It goes without saying that it can be made to be present in the polymer by amphoteric treatment with an agent.

The polymer must be water-soluble, but not excessively water-soluble. Therefore, the tertiary or quaternary nitrogen-containing polymer is preferably a copolymer with a hydrophobic monomer. Examples of the hydrophobic monomer include styrene or its nucleus or side chain substituent, acrylic or methacrylic acid ester, vinyl halide, and the like.

Particularly suitable nitrogen-containing water-soluble polymers in the present invention are acrylic polymers obtained by copolymerizing the following components (a) 'to (c)'.

The most suitable acrylic polymers in the present invention, X in the monomer of (a) 'monomer wherein (f) ^- are those wherein ^- is Cl.

These acrylic polymers are sold by Mitsubishi Yuka Fine Co., Ltd. under the trade names ST-1000, ST-1100, ST-1300, and ST-3000.

However, the component (b) ′ includes methyl acrylate, butyl acrylate, propyl acrylate, stearyl acrylate, methyl methacrylate, ethyl methacrylate, etc., and the component (c) includes styrene, vinyl chloride, methyl styrene, etc. Is mentioned.

Other defoaming agents, wetting agents, antifreezing agents, preservatives, viscosity modifiers, reaction accelerating / retarding agents, dispersants, plasticizers, organic coloring agents, etc. of these components (a), (b) and (c) May be added. In addition, organic fillers called plastic pigments may be added.

Further, a slight solvent or the like can be used for the purpose of improving the drying property and facilitating the coating. The material and composition of the coating agent are determined by the surface specific resistance and the smoothness (of the surface coating layer and the back coating layer). Bekk index of JIS P-8119),
Static friction coefficient and dynamic friction coefficient (JIS C-6244 6,12
Item), charge decay (10 kV voltage was applied to the sample for 30 seconds at 23 ° C and 50 RH% using a Static Neostometer from Shishido Shokai, then the voltage was reduced to zero and the charge amount was reduced to 1/2.
(The time required for the decay to decrease) to the physical properties shown in the above table.

If the specific surface resistance exceeds 1 × 10 ¹² Ω, a block or dust easily adheres to the ballot.

This is because the smoother the smoother (the higher the Bekk index value), the easier it is to turn over the ballot paper by hand. However, if the smoothness is too high, it becomes difficult to write with a pencil. In order to prevent blocking, the charge decay amount is set to 1.5 seconds or less, preferably 0.8 seconds or less.

The coefficient of static friction must be 0.6 or less. The coefficient of kinetic friction is 0.25 to 0.4, and if it exceeds 0.4, it becomes difficult for the ballot paper to slide on the roll of the counter, and if it is less than 0.25, the slip of the roll of the counter is too good, leading to counting errors.

Preferably, the difference between the static friction coefficient and the dynamic friction coefficient is 0.1 to 0.3.
Select the type of coating agent to be 5.

It is sufficient that the thickness of the coating layer is 0.05 to 10 μm for both the surface layer and the back layer.

The thickness of ballot paper is generally 80 to 140 microns, and the opacity (JIS P-8138) is 90% or more.

Hereinafter, the present invention will be described in more detail by way of examples. In addition, all the parts of the combination in the examples are based on weight.

Production example of synthetic paper: Mitsubishi Yuka Co., Ltd. polypropylene "Noblen MA-6"
(Trade name) 69 parts, Mitsubishi Yuka Co., Ltd. high-density polyethylene "Yukaron Bird EY-40" (trade name) 8 parts, 0.8 parts of titanium oxide having an average particle diameter of 1 micron as a light fastness improver and Sankyo Co., Ltd. 0.06 parts of bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate “Sanol LS-770” (trade name)
22.2 parts of clay, 0.3 parts of antioxidant and 0.1% of oleic acid "Lunak" (trade name) manufactured by Kao Soap Co., Ltd. as a dispersant
The composition consisting of parts was melted and kneaded using an extruder, and extruded from a die into a sheet at a temperature of 200 ° C, about 50 ° C.
Until the sheet was cooled. Then heat this sheet to about 150 ° C
And then use the peripheral speed of the roll group to make
It was stretched twice.

Separately, 55 parts of polypropylene (Mitsubishi Noble MA-6),
42 parts of heavy calcium carbonate with an average particle size of 0.8μ, average particle size 1
μ part of titanium oxide, bis (2,2,6,6-tetramethyl-
0.4 parts of 4-piperidyl) sebacate, Yoshinox BHT, Mark 329 and Irganox-1076 as antioxidants
0.1 parts each, and 0.1 parts of oleic acid, and melt kneading the composition using two different extruders using a die.
Laminated on both sides of the longitudinally stretched sheet at a temperature of 200 ° C., once cooled to a temperature 20 ° C. higher than room temperature, reheated to about 155 ° C., and moved in a horizontal direction using a tenter. Double-stretched, then passed through an oven at 160 ° C., heat-set, and further subjected to corona discharge treatment. The biaxially stretched film of the intermediate layer (base layer) had a thickness of 70 μm, and the uniaxially stretched film of the front and back layers A three-layered synthetic paper having a thickness of 10 μm and excellent printability and writability was obtained.

Each layer of the synthetic paper had many fine microvoids, and the specific gravity of the synthetic paper was 0.712.

Examples 1 and 2, Comparative Example 1 The following coating agent I or II was applied to the front and back surfaces of the synthetic paper 1 having a thickness of 90 μm obtained in the above example, and dried at 100 ° C. to obtain a surface coating. A coated paper having a thickness of the layer 1a of 4 μ and a thickness of the back coating layer 1b of 4 μ was obtained.

On the surface coating layer 1a of the coated paper 1, candidate entry fields, notes, and the name of the Election Commission were printed 2 to prepare a voting paper 3. (FIG. 1) The physical properties of these voting papers and the synthetic paper before coating are shown in Table 2.

(Effect) Since the ballot paper of the present invention uses a biaxially stretched film as a base material, it is opened naturally, so that the number of hands is greatly reduced. Also, the voting paper is not broken during counting by the counter.

Furthermore, the coating layer imparts writing properties, antistatic properties, and anti-blocking properties to the biaxially stretched film, so that the paper is smoothly fed and discharged when counting by the counter, and the writing property does not stop the counter. This is the elected ballot.

[Brief description of the drawings]

 FIG. 1 is a perspective view of a voting paper of the present invention.

Claims (2)

(57) [Claims] A synthetic paper having a biaxially stretched thermoplastic resin film as a base layer is used as a base paper, and a coating agent is applied to the front side and the back side of the base paper and dried to form a surface. Coated paper having a surface specific resistance of a coating layer and a back coating layer, smoothness, a coefficient of static friction, a coefficient of dynamic friction, and a charge attenuation amount each within the following ranges, Election voting paper with an opacity of 90% or more, which is made by printing the entry fields of the candidates on the surface coating layer of this coated paper. 2. The coating composition according to claim 1, wherein the coating composition contains (a) an aqueous resin binder, (b) an inorganic fine powder, and (c) a water-soluble polymer having an antistatic function. The ballot described in paragraph 1.