JPH0751393B2 - Election ballot - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is used for the election of parliamentarians, prefectural assembly members, members of municipalities and prefectural governors, mayors of elections, and election and dismissal of judges of the Supreme Court. It is about paper.

The election ballot according to the present invention has no blocking, and is easy to perform manual work and counting work with an election counter.

[Prior art]

As an election ballot paper, a paper in which a candidate name entry field, notes for voting, and the name of the board of elections are printed on a paper made of pulp has been conventionally used.

This paper will be folded in two and put in the ballot box after the candidate's name is written in the entry space by the electorate.

After the election ballot, the ballots are taken out of the ballot box, people open the bent ballots under the witness of the Election Commissioner, the ballots are sorted by candidate name, and each candidate is manually The number of votes for each is counted and totaled, and for the purpose of confirmation, it is totaled using an election counter.

[Problems of conventional technology]

Since ballots made from pulp have poor water resistance, they may be damaged when the ball is flipped over with water applied to the fingers when counting by hand. Moreover, the bent ballot paper requires a lot of labor.

As a paper having water resistance, a biaxially stretched film of a thermoplastic resin containing an inorganic fine powder is used as a base material layer, and a uniaxially stretched film of a thermoplastic resin containing an inorganic fine powder is used as a paper-like layer on the front and back surfaces. Synthetic paper consisting of laminated layers (Japanese Patent Publication No. 46-
40794) or a synthetic paper provided with a polymer layer having an antistatic function on the surface thereof (JP-A-57-149363 and 57-153484).
No., and Japanese Patent No. 8515369), which are sold under the trade names of YUPO FPG, YUPO GFG, and YUPO CFG by Oji Yuka Synthetic Paper Co., Ltd.

These synthetic papers not only have water resistance,
Since the biaxially stretched film based on the base material has many fine voids inside, it is lightweight and oriented in the biaxial direction, so the synthetic paper folded and put in the ballot box recovers its elasticity. Since it is naturally released from bending by force and restores to a sheet shape, when this is used as an election ballot, there is an advantage that it is not necessary to open the folds one by one like using pulp paper and make it into a sheet shape. Have.

However, due to its excellent water repellency, the water for turning the fingers attached to the fingers during the counting of human hands remains on the surface of the synthetic paper, and the moisture causes the ballots to move back and forth to adhere to each other. It was found that the number of sheets counted together by the counting machine and the number of counting by the counter may be different from each other.

[Specific means for solving problems]

The above-mentioned drawbacks when using a synthetic paper having a biaxially stretched film as a base material layer as a ballot paper has the above-mentioned disadvantages. By providing coating layers having different smoothness, and by setting the static friction coefficient and the dynamic friction coefficient between the front coating layer and the back coating layer of the coated paper having this coating layer in a specific range ,
Smooth paper feeding and discharging to the election counter, eliminating errors in counting.

Since this coating layer has water absorbency, it absorbs water when turning the hand, so that the ballot paper does not block.

That is, the present invention uses a synthetic paper having a biaxially stretched film of a thermoplastic resin film as a base material layer as a base paper, a coating agent on the front surface side and the back surface side of this base paper, and a front surface side and a back surface side. It is a coated paper which is coated with different compositions and dried, and the surface resistivity and smoothness of the surface coating layer and the back surface coating layer show the following physical properties. A coated paper whose static and kinetic friction coefficient between the layer and the back coating layer is within the following range is obtained, and the opacity of 90 is obtained by printing the entry column of the elected person on the surface coating layer of this coated paper. Providing more than 100% election ballots.

(Synthetic paper) The synthetic paper may be any synthetic paper having a biaxially stretched film of a thermoplastic resin as a base material layer, and a biaxially stretched film of a thermoplastic resin containing 8 to 60% by weight of inorganic fine powder. Even a single-layer synthetic paper is one in which layers having a uniaxially stretched film of a thermoplastic resin containing an inorganic fine powder as a paper-like layer are laminated on the front and back surfaces of this biaxially stretched film base material layer. May be. Therefore, all those described in the above-mentioned patent publications can be used.

The microvoids in the biaxially stretched film base material layer of the synthetic paper facilitate folding, and the biaxial orientation contributes to the restoration of the folded paper into a sheet shape. The stretching ratio is generally 4 to 9 times in the machine direction and 4 to 12 times in the transverse direction.

The front and back surfaces of this 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 80 to 130 microns.

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

The resin water-based emulsion, as an organic binder, imparts water resistance, adhesion of the pigment and the filler, and adhesion of the coating layer to the synthetic paper. The water-based resin binder used in the present invention is a base material. It may be arbitrarily selected in consideration of the kind of the thermoplastic resin of the material of a certain synthetic paper 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-acrylic acid ester copolymer latex, acrylic acid ester-styrene copolymer emulsion, ethylene-vinyl acetate copolymer emulsion,
Acrylic resin emulsion or the like is used alone or in combination of two or more kinds.

Next, examples of the inorganic fine powder as the component (b) include calcium carbonate, satin white, silica, titanium oxide, alumina, clay, aluminum sulfate, and the like. In particular, fillers such as calcium carbonate, titanium oxide, and zinc oxide. Pigments such as iron oxide are preferred. The particle size of the non-hydraulic inorganic fine powder is 15 μm or less, and preferably 0.1 to 10 μm. The reason is that if the particle size of the inorganic fine powder is 15 μm or more, the surface of the obtained synthetic paper becomes rough and its smoothness deteriorates. The component (b) is intended to improve printability, whiteness, coloring, opacity, surface smoothness, and cost reduction as a filler.

Examples of the water-soluble polymer having the antistatic function of the component (c) include polyethyleneimine, poly (ethyleneimine-urea), ethyleneimine adduct of polyamine polyamide, and nitrogen atom-containing cationic or amphoteric polymer. This nitrogen-containing water-soluble polymer can be obtained by homopolymerizing nitrogen-containing monomers or copolymerizing these monomers with other copolymerizable monomers.

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

Where R in each formula¹Is hydrogen or a methyl group, R³And R^Four
Are lower alkyl groups (especially C₁~ C_Four, C₁~
C₂), R^FiveIs a saturated or unsaturated alkyl group having 1 to 22 carbon atoms
Or a benzyl group, X Is a quaternized N Anniversary
On (eg halide (especially chloride)), A is
Represents an alkylene group having 2 to 6 carbon atoms.

This nitrogen-containing water-soluble polymer is obtained by using these quaternary (amphoteric) nitrogen-containing monomers (b), (d), (d) ', (f),
(F) ', (h), (h)', (to) 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, it is copolymerized with other monomers and then quaternized with a cationizing agent such as alkyl halide, dimethyl sulfate, benzyl halide monochloroacetate or amphoteric conversion such as monochloroacetic acid (salt), propane sultone, propiolactone, etc. It goes without saying that it can be made to exist in the polymer by amphoterization with an agent.

The polymer must be water soluble, but excessive water solubility is not desirable. 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 substitution product, acrylic or methacrylic acid ester, vinyl halide, and the like.

A particularly suitable nitrogen-containing water-soluble polymer in the present invention is an acrylic polymer obtained by copolymerizing the following components (a) 'to (c)'.

[Wherein, R ¹ is H or a methyl group, and R ² is a C _{1 to} C ₁₈ alkyl group] (c) ′ Other hydrophobic vinyl monomer 0 to 20% by weight.

The most suitable acrylic polymer in the present invention is (a) '
Body is the above monomer (f) X Is Cl Is what
It

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

However, as the component (b) ', methyl acrylate, butyl acrylate, propyl acrylate, stearyl acrylate, methyl methacrylate, ethyl methacrylate, etc., and styrene, vinyl chloride, methylstyrene, etc. as the component (c) Can be given.

In addition to these components (a), (b) and (c), an antifoaming agent,
Wetting agent, antifreeze agent, preservative, viscosity modifier, reaction acceleration
A retarder, dispersant, plasticizer, organic colorant and the like may be added. Other organic fillers called plastic pigments may also be added.

Further, for the purpose of improving the drying property and facilitating coating, a slight amount of solvent or the like can be used.

The materials and composition of the coating agent are as follows: surface resistivity of surface coating layer and back surface coating layer, smoothness (Bekk index of JIS P-8119), static friction coefficient and dynamic friction coefficient (6.12 of JIS C-6244). The physical properties shown in the above table are selected.

If the surface resistivity exceeds 1 × 10 ¹² Ω, blocking may occur or dust may easily adhere to the ballot paper.

This is because the smoother the smoothness (the higher the Bekk index value), the easier the work of flipping the ballots by hand, but if the smoothness becomes too high, blocking will occur. To prevent this blocking, the smoothness of one coating layer is 180-500 seconds and a rough surface, and the smoothness of the other coating layer is 2,
There is also a method of smoothing it for 000 seconds or more, but in this case, a ballot having a static friction coefficient and a dynamic friction coefficient suitable for the paper feeding / discharging property of an election counter cannot be obtained.

The coefficient of static friction must be 0.6 or less. The coefficient of kinetic friction is 0.25 to 0.4.Beyond 0.4, it becomes difficult for the ballot paper to slide on the rolls of the counting machine, and if it is less than 0.25, the slips of the rolls of the counting machine are too good, leading to counting errors. .

Preferably, the difference between the coefficient of static friction and the coefficient of dynamic friction is 0.1 to 0.35.
The type of coating agent is selected so that

The thickness of the coating layer is sufficient to be 0.05 to 10 μm for both the front layer and the back layer.

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

Hereinafter, the present invention will be described in more detail with reference to Examples. In addition,
All formulation parts in the examples are by weight.

Synthetic paper production example: Polypropylene "Nobrane MA-6" manufactured by Mitsubishi Yuka Co., Ltd.
(Brand name) 90 parts, Mitsubishi Yuka Co., Ltd. high density polyethylene "Yukaron Hard EY-40" (Brand name) 10 parts, 0.8 parts titanium oxide with an average particle size of 1μ as a light resistance improver and Sankyo Co., Ltd. Bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate "Sanol LS-770""(trade name) 0.06
Parts, 15 parts of clay, 0.3 parts of antioxidant and oleic acid “Lunac” (trade name) manufactured by Kao Soap Co., Ltd. as a dispersant.
A composition consisting of 1 part is melted and kneaded by using an extruder, and then extruded into a sheet form at a temperature of 200 ° C from a die to about 50 ° C.
Until the sheet was cooled. Then heat this sheet to about 135 ° C.
After heating to the vertical direction, use the difference in peripheral speed of the rolls to move the
It was stretched twice.

Separately, 100 parts of polypropylene (Mitsubishi Noble MA-6),
80 parts of clay having an average particle size of 1.5μ, 10 parts of titanium oxide having an average particle size of 1μ, 0.4 part of bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate, Yoshinox BH as an antioxidant
T, Mark 329 and Irganox-1076 respectively 0.
Another 2 parts of the composition blended with 1 part and 0.1 part of oleic acid.
Melt kneading using a single extruder, laminated on both sides of the sheet longitudinally stretched into a sheet at a temperature of 200 ° C from a die, once cooled to a temperature 20 ° C higher than room temperature,
It is reheated to about 155 ° C, stretched 8 times in the transverse direction using a tenter, then passed through an oven at 160 ° C for heat setting, and further subjected to corona discharge treatment to remove intermediate layer (base layer) 2 A synthetic paper having a three-layer structure in which the thickness of the axially stretched film was 70 μ and the thickness of each of the uniaxially stretched films of the front and back layers was 10 μ, and which was excellent in writing and writing, was obtained.

Each layer of this synthetic paper had many fine microvoids, and the specific gravity of the synthetic paper was 0.73.

Example 1 The following coating agents I and II were applied to the front and back surfaces of the synthetic paper having a thickness of 95 microns obtained in the above example, and dried at 100 ° C. to give a surface coating layer having a thickness of 8μ, A coated paper having a backside coating layer with a thickness of 6 μm was obtained.

On the surface coating layer of this coated paper, the candidate's entry column, precautionary notes, and the name of the Election Management Committee were printed to create a ballot.

The physical properties of this ballot paper and the synthetic paper before coating are shown in Table 2.

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Claims (2)

[Claims] 1. A synthetic paper having a biaxially stretched film of a thermoplastic resin film as a base material layer is used as a base paper, and a coating agent is applied to the front surface side and the back surface side of this base paper, and the composition of the front surface side and the back surface side. The coated surface of each of the surface coating layer and the back surface coating layer, the surface resistivity and the smoothness of which have the following physical properties, are applied. Opacity obtained by obtaining coated paper having a coefficient of static friction and a coefficient of dynamic friction between the coating layer and the backside coating layer within the following ranges, and printing the entry fields of the elected person on the surface coating layer of this coating paper Is 90% or more election ballot. 2. A coating agent comprising: (a) a resinous aqueous binder, (b) an inorganic fine powder, and (c) a water-soluble polymer having an antistatic function. Ballot paper described in paragraph 1.