JPH01196399A - Ballot paper for election - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention i is an election ballot used in the election of members of the National Diet, prefectural assembly, municipal councilors, prefectural governors, mayors of municipalities, and elections for dismissal of judges of the Supreme Court. It's about paper.

The election voting paper of the present invention has no blocking and can be easily counted manually or with a dedicated election counting machine.

[Prior art]

Conventionally, election ballots have been made of paper made from pulp, with columns for writing candidate names, precautions for voting, and the name of the election management committee printed thereon.

After the candidate's name is written in the entry field by the elector, the form is folded in half and placed in the ballot box.

After the election voting is over, the ballots are taken out of the ballot boxes, and in the presence of election officials, people open the folded ballots, sort the ballots by candidate name, and manually classify each candidate. The number of votes for each vote is counted and tallied, and a dedicated election counting machine is used for further confirmation.

[Problems with conventional technology]

Ballots made from pulp are not water resistant, so they can be damaged when the ballots are turned over with wet fingers during manual counting. Also, opening the folded ballot paper (requires time and effort).

As water-resistant paper, a biaxially stretched film of thermoplastic resin containing fine inorganic powder is used as a base layer, and a uniaxially stretched film of thermoplastic resin containing fine inorganic powder is used as a paper-like layer on the front and back sides. Synthetic paper made of laminates
-40794) and synthetic paper with a polymer layer having an antistatic function on its surface (JP-A-57-149363, JP-A-57-153484, British Patent Publication No. 851536)
No. 9), and these are Yupo FP than egg oil synthetic paper ■.
It is sold under the product names of G, Yupo GFG, and Yubo CFG.

These synthetic papers are not only water resistant;
The biaxially stretched film of the base material has many fine voids inside, and is lightweight and oriented in two axes, so the synthetic paper that is folded and placed in the ballot box is able to recover its elasticity. It is naturally released from bending by force and restores itself to the sheet form, so when used as election ballot paper, it has the advantage of saving the effort of unfolding each fold and forming it into a sheet, which is the case when using pulp paper. have

However, due to its excellent water repellency, the moisture applied to the hand-turning paper during manual counting remains on the surface of the synthetic paper. It has been found that when the sheets are first run through a counting machine, the numbers tallied by hand and the numbers tallied by the counting machine are different.

[Specific measures to solve the problem]

The above-mentioned drawbacks when using synthetic paper with a biaxially stretched film as the base layer for voting papers can be solved by coating the front and back sides of the synthetic paper with coating agents of different compositions and drying them. By providing a smooth coating layer with different coefficients of static and dynamic friction, paper can be fed smoothly into election counting machines and errors in counting can be eliminated.

Since this coating layer has water absorbency, it absorbs moisture when the ballot is turned over by hand, so the voting paper does not block.

That is, in the present invention, a synthetic paper having a biaxially stretched thermoplastic resin film containing 8 to 60% by weight of inorganic fine powder as a base layer is used as a base paper, and on the front and back sides of this base paper, , obtained by applying a coating agent containing (a) resin water-based binder (b) inorganic fine powder (c) water-soluble polymer having antistatic function with different compositions on the front side and back side and drying. A coated paper with the following physical properties for each front coating layer and back coating layer is obtained, and an entry column for the candidate is printed on the front coating layer of this coated paper, and the opacity is 90% or more. It provides election ballot papers.

(Synthetic paper) Any synthetic paper may be used as the synthetic paper, as long as it has a base layer of a biaxially stretched film of thermoplastic resin containing 8 to 60% by weight of inorganic fine powder. Even if it is synthetic paper, it may be one in which a paper-like layer of a uniaxially stretched thermoplastic resin film containing inorganic fine powder is laminated on the front and back surfaces of this biaxially stretched film base layer. .

Therefore, everything described in the aforementioned patent publications can be used.

The microvoids in the biaxially stretched film base layer of this synthetic paper facilitate folding, and the biaxial orientation contributes to restoring the folded paper to its sheet form. The stretching ratio is generally 4 to 9 times in the longitudinal 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 to improve adhesion to 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 an aqueous resin emulsion, an inorganic fine powder, and a water-soluble polymer with an antistatic function. 30 parts by weight of inorganic fine powder for 100 parts by weight of solid resin
The water-soluble polymer CC) is used in a proportion of 0 to 2.000 parts by weight, preferably 500 to 700 parts by weight, and a proportion of 0.1 to 5 parts by weight.

The aqueous resin emulsion acts as an organic binder and provides water resistance, fixation of pigments and fillers, and adhesion of the coating layer to the synthetic paper. It may be selected arbitrarily taking into account the type of thermoplastic resin used as a material for a certain synthetic paper and other conditions, but examples include 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-hinyl acetate copolymer emulsion, acrylic resin Emulsions and the like may be used alone or in combination of two or more.

Next, the inorganic fine powder of component (b) includes calcium carbonate, satin white, silica, titanium oxide, alumina, clay, aluminum sulfate, etc., but especially fillers such as calcium carbonate, titanium oxide, zinc oxide, etc. , pigments such as iron oxide, etc. are preferred. The particle size of this non-hydraulic inorganic fine powder is preferably 15μ or less, particularly preferably 0.1 to 1αμ. The reason for this is that if the particle size of the inorganic fine powder is 15 μm or more, the surface of the resulting synthetic paper will be rough and its smoothness will deteriorate. The purpose of the component is to improve printability, reduce whitening, color, impart opacity, provide surface smoothness, and reduce costs as a filler.

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

Specific examples of nitrogen-containing monomers include the following.

(iii) CH2COO” R'R3 (to) (-)・ Here, in each formula, R1 is hydrogen or a methyl group, and R3 and R4 are each a lower alkyl group (in particular, C1 to C4,
Among them, C1 to C,), RS is a saturated or unsaturated alkyl group or benzyl group having 1 to 22 carbon atoms, X (El is a quaternized NO counteranion (for example, halide (especially chloride)), A is an alkylene group having 2 to 6 carbon atoms,
represents.

This nitrogen-containing water-soluble polymer is composed of these quaternary (amphoterized) nitrogen-containing monomers (b), (d), (d)', (he), (he)', (chi), (chi)' , (g), or by copolymerizing these quaternary nitrogen-containing monomers with other vinyl monomers. In addition, after homopolymerizing the tertiary nitrogen-containing monomers (a), (c), (e), and (h) or copolymerizing them with other monomers, the alkyl halide,
Quaternization or monochloroacetic acid (
It goes without saying that it can be made to exist in the polymer by amphotericizing it with an amphoteric agent such as salt), propane sultone, propiolactone, etc.

It is necessary that the polymer be water soluble, but it is not desirable that it be too water soluble. Therefore, this tertiary to quaternary nitrogen-containing polymer is preferably a copolymer with a hydrophobic monomer.

Examples of the hydrophobic monomer include styrene or its substituted derivatives in the nucleus or side chain, acrylic or methacrylic acid esters, vinyl halides, and others.

Particularly suitable nitrogen-containing water-soluble polymers in the present invention are as follows (a
)' to (c)' are copolymerized acrylic polymers.

(a)' Monomers (a) to (f) 20 to 40% by weight (b)
'C1(2=C-COOR" 6~
80% by weight [wherein, R1 is H or a methyl group, Rz is C
(c)'Other hydrophobic vinyl monomers 0 to 20% by weight.

The most suitable acrylic polymer for the present invention is one in which monomer (a)' is the above monomer (he) and xO is cge.

These acrylic polymers are ST-1000, 5T-1100, and ST-130 from Mitsubishi Yuka Fine ■.
0. It is sold under the product name ST-3000.

Therefore, the above component (b)' includes methyl acrylate, butyl acrylate, propyl acrylate, stearyl acrylate, methyl methacrylate, ethyl methacrylate, etc., and the component (c) includes styrene, vinyl chloride, methylstyrene, etc. can be given.

In addition to these components (a), (b) and (c), an antifoaming agent,
Wetting agents, antifreeze agents, preservatives, viscosity modifiers, reaction accelerators,
Retarders, dispersants, plasticizers, organic colorants, etc. may also be added. Other organic fillers called plastic pigments may also be added.

In addition, a small amount of solvent or the like may be used for the purpose of improving drying properties and making coating easier.

The material and composition of the coating agent are based on the surface resistivity and smoothness (JIS P-8119 Bek
k index), static friction coefficient (JIS K-), and dynamic friction coefficient (JIS K-) are selected so that the physical properties are as shown in the table above.

If the surface resistivity exceeds IXIO'' Ω, blocking may occur or flakes may easily adhere to the ballot paper.

This is because the smoother the smoothness (higher the Bekk index value), the easier it is to turn over the ballot paper by hand, but if the smoothness is too high, blocking will occur. To prevent this blocking, there is a method of making one coating layer rough with a smoothness of 180 to 500 seconds and making the other coating layer smooth with a smoothness of 2,000 seconds or more, but in this case In this case, it is not possible to obtain a ballot paper having a static friction coefficient and a dynamic friction coefficient suitable for paper feeding and discharging properties of a counting machine dedicated to elections.

The static friction coefficient needs to be 0.6 or less.

The coefficient of kinetic friction is between 0.25 and 0.4; if it exceeds 0.4, it will be difficult for the ballot paper to slide on the rolls of the counting machine, and if it is less than 0.25, it will be difficult for the ballot paper to slide on the rolls of the counting machine. is too good, leading to aggregation errors.

Preferably, the difference between the static friction coefficient and the dynamic friction coefficient is 0.1 to 0.
．． Select the type of coating agent so that the number is 35.

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

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

The present invention will be explained in more detail with reference to Examples below.

In addition, all formulation parts in the examples are based on weight.

Manufacturing example of synthetic paper: 90 parts of Mitsubishi Yuka's polypropylene "Noprene MA-6°" (trade name), 100 parts of Mitsubishi Yuka's high-density polyethylene "Yukalon Hard EY-40' (trade name), light resistance As a modifier, 0.8 part of titanium oxide with an average particle size of 1μ and Sankyo ■ Bis(2,2,6°6-tetramethyl-4
-piperidyl) sebacate “Sanol LS-770)”
(Product name) 0.06 parts, clay 15 parts, antioxidant 0
．． A composition consisting of 3 parts and 0.1 part of oleic acid "Lunatsuku" (trade name) manufactured by Kao Soap ■ as a dispersant was melted and kneaded using an extruder, and then extruded into a sheet form at a temperature of 200°C from a die. The sheet was cooled to about 50°C.

Next, this sheet was heated to about 135°C, and then stretched 4 times in the longitudinal direction using the difference in peripheral speed between the roll groups.

Separately, polypropylene (Mitsubishi Nople MA-6) 100
parts, 80 parts of clay with an average particle size of 1.5μ, 10 parts of titanium oxide with an average particle size of 1μ, 0.4 parts of bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate, as an antioxidant. 0.1 part each of Yoshinox BHT, Mark 329 and Irganox-1076, 0.1 part of oleic acid.
The composition blended at a ratio of 1 part was melt-kneaded using two other extruders, and laminated into a sheet at a temperature of 200 ° C from a die on both sides of the longitudinally stretched sheet,
- After cooling to a temperature 20°C higher than room temperature, approximately 155
°C, stretched 8 times in the transverse direction using a tenter, then heat-set by passing through an oven at 160 °C, and then subjected to corona discharge treatment to form two intermediate layers (substrate layers). A synthetic paper having a three-layer structure with an axially stretched film having a thickness of 70 μm and a uniaxially stretched film on the front and back layers each having a thickness of 10 μm and excellent printing and writing properties 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 On the front and back sides of the synthetic paper with a wall thickness of 95 microns obtained in the above example,
Apply the following coating agents I and ■, dry at 100℃,
A coated paper was obtained in which the surface coating layer had a thickness of 8 μm and the back coating layer had a thickness of 6 μm.

Candidate entry fields, notes, and the name of the election management committee were printed on the surface coating layer of this coated paper to create a ballot paper.

Table 2 shows the physical properties of this voting paper and the synthetic paper before coating.

* Water-soluble acrylic resin antistatic agent made by Mitsubishi Yuka (Kiku) Table 2 * Number of counting errors when counting 100 times with 1,000 pasts of ballot paper Procedural correction 8 (voluntary) 1 Incident display 1988 Patent Application No. 22294 Address: 5-1 Marunouchi-chome, Chiyoda-ku, Tokyo Name: Oji Yukasynthetic Paper Co., Ltd. 4 Agent address: 2-5-2-6 Marunouchi, Chiyoda-ku, Tokyo Request for a patent in the specification subject to amendment Scope and Detailed Description of the Invention.

7 Contents of amendment As per attached sheet.

(Claim a) 1) - A synthetic paper having a two-wheel stretched film of a thermoplastic resin film as a base material layer is used as a base paper, and each of the front and back coating layers obtained based on this paper is used as a base paper. An election voting paper with an opacity of 90% or more, obtained by obtaining a coated paper with the following physical properties, and printing a column for writing in the rejected elector on the surface coating layer of the coated paper.

2), the coating agent is (b) inorganic fine powder (detailed description of the invention) (1), page 5, line 12 to the last line of the same page, ``In other words, the present invention... ...and apply it.''
``In other words, the present invention uses a synthetic paper having a biaxially stretched thermoplastic resin film as a base layer as a base paper, and coats a coating agent on the front and back sides of this base paper. ,” is corrected.

(ii), page 6, lines 13 to 16, ``What kind of synthetic paper can be used as a synthetic paper whose base layer is a biaxially stretched film of thermoplastic resin containing 8 to 60 weight 70 of inorganic fine powder? ``As for synthetic paper, any synthetic paper with a biaxially oriented film of thermoplastic resin as the base layer can be used.'' It may be a synthetic paper with a single layer of biaxially stretched film of thermoplastic resin containing 8 to 60% by weight of inorganic fine powder.

(iiD, page 14, lines 18-19, “Static friction coefficient (
JIS K-), dynamic friction coefficient (JIS K-)" should be corrected to "static friction coefficient and kinetic friction coefficient (JIS K-6244, Section 6.12)."

GV), page 16, line 11, replaces “100 copies” with “
10 copies”.

(■), Table 2 on page 19 is amended as follows.

Claims (1)

[Scope of Claims] 1) A synthetic paper having as a base layer a biaxially stretched thermoplastic resin film containing 8 to 60% by weight of inorganic fine powder is used as a base paper, and the front and back sides of this base paper are A coating agent containing (a) a resin water-based binder, (b) an inorganic fine powder, and (c) a water-soluble polymer with antistatic function is applied to the side with different compositions on the front and back sides, and dried. A coated paper with the following physical properties for each of the surface coating layer and back coating layer obtained was obtained, and an entry column for the elector was printed on the surface coating layer of this coated paper, and the opacity was 90%. More election ballot papers. 2) The voting paper according to claim 1, wherein the water-soluble polymer having an antistatic function is a zwitterionic polymer having a quaternary nitrogen atom.