JP3257884B2 - Manufacturing method of ultra-thin gloves made of vinyl chloride - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing ultra-thin vinyl chloride gloves.

[0002]

2. Description of the Related Art Conventionally, the production of ultra-thin vinyl chloride gloves includes
First, a glove mold is immersed in a vinyl chloride paste to form a thin film on the peripheral surface of the mold, and then the mold is turned over to form a glove. It is necessary to select non-defective products, and the test method is to transfer the above-reversed and released gloves to the pinhole test process, and inject water into each glove to check for the presence of water leakage. It was what had been done by.

[0003]

However, in the above-mentioned conventional method, the pinhole test is not only troublesome, but also the glove forming step and the pinhole test step have to be performed separately and independently. And glove production time was lost.

[0004] The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a manufacturing method capable of performing even a pinhole test in-line. .

[0005]

In order to achieve the above-mentioned object, the technical means of the present invention is to form a glove mold having excellent conductivity and immerse the glove mold in a vinyl chloride paste. The glove body was formed into a film, and then the mold on which the glove body was formed was immersed in a surface treatment agent to form a surface treatment layer, and then the glove body and the surface treatment layer were formed. The mold is immersed in a saline solution tank on which the electrodes are set,
The other electrode is brought into contact with the mold located on the water tank to measure the degree of electrical insulation, and then released.

[0006]

According to the above technical means, a pinhole test can be performed in a state in which a glove type film is formed in-line.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. The outline of the manufacturing method of this embodiment is as follows: a vinyl chloride resin solution immersion step → a surface treatment agent immersion step → a pinhole test step → a mold release step.

[Vinyl chloride resin immersion step]
Cr or Ni-Fe surface treatment (10-3
0 μ), the glove forming die 1 formed into a hand shape which is smooth and free of pinholes is adjusted to a predetermined temperature, and then immersed once or twice in a vinyl chloride resin solution 2. A glove body 3 is formed into a thin film composed of one or two layers, or, if necessary, several layers on the mold surface by applying a vinyl chloride paste onto the mold surface by pulling up and semi-curing, and cooling (FIG. 1 (a), FIG. (b)). The glove mold 1 is not particularly limited as long as it has good conductivity. For example, the glove mold 1 may be a hand-shaped mold made of a desired metal material and may be appropriately changed. .

The vinyl chloride resin solution 2 is composed of, for example, a vinyl chloride paste resin mixed with various commonly used additives such as a plasticizer, a stabilizer, a gelling agent, and a pigment.
It is a well-known vinyl chloride paste with ~ 10,000cps,
In some cases, a straight resin may be blended.

[Surface treatment agent dipping step] Next, the glove mold 1 having the glove body 3 formed in a thin film is transferred to a surface treatment agent dipping step, and the glove body 3 is formed into a thin film. The formed glove mold 1 is immersed in a desired surface treatment agent 4 to form a surface treatment layer 5 on the entire surface (inner surface) 3a of the glove body 3 or partially in a laminated manner ((b) in FIG. 1, FIG. 2). (C)
).

The surface treating agent 4 is an emulsion type having a solid content of 12% by weight and a viscosity of 10 to 200 cps, in which a desired antibacterial component is copolymerized in a surface treating agent component such as an acrylic polymer. Yes, the glove mold 1 having the thin film layer of the glove body 3 is immersed in the surface treatment agent again, and the surface treatment agent is adhered. The layer 5 is formed.

The above antibacterial component is, for example,

Embedded image (Meth) acrylic acid derivatives represented by the following formulas, for example, methacryloxyethyltrimethylammonium chloride, methacryloxyethyltriethylammonium chloride having a quaternary ammonium salt, etc., and a monomer having a structural formula represented by the above chemical formula 1 Is copolymerized in the acrylic polymer in the surface treatment agent, thereby preventing the growth of fungi in the glove due to the antibacterial property of the quaternary ammonium salt. Further, the content thereof is 5 to 80 times the solid content of the surface treatment agent.
% By weight. Note that the antibacterial agent is not limited to the above example, and is optional. Any antibacterial agent may be used as long as it has the same function and effect as the present application, and can be appropriately changed to a conventionally known antibacterial agent.

In the present invention, the antibacterial agent is copolymerized in the acrylic polymer in the surface treating agent. This is because, for example, in the case where the antibacterial agent is blended, the adhesive force of the surface treatment agent is reduced by increasing the mixing ratio, and there is a problem that the surface treatment agent is easily peeled off during use. This is because the adhesiveness to the inner surface 3a of the glove body 3 is good, and both the antibacterial property and the adhesiveness are combined.

In this embodiment, the ear 7 is removed before the pinhole is transferred to the pinhole test process (FIG. 1 (c)). However, the present invention is not limited to this embodiment. It may be performed after the pinhole test step, and may be performed arbitrarily, but is preferably performed in the production method line. In addition, the method of deleting is arbitrary. In this embodiment, the present applicant uses a glove mold disclosed in Japanese Utility Model Application No. 4-27658 and a device disclosed in Japanese Patent Application No. 4-249744. It was taken.

That is, the glove forming die 1 used in this embodiment has a ridge 1a provided around the mouth of the die, and the ridge 1
A gloved film-forming surface 1c from the tip of the fingertip 1a to the fingertip portion 1b, and an ear film-forming surface 1e from the tip of the ridge 1a to the base edge 1d,
The fluorine-based coating 1f is provided on the entire area of the ear-formed film 1e. The ear 7 is shaved off by the ear-removal belt 11, and the releasability is improved by the wettability of the fluorine-based coating 1f. At the same time, the adhesion amount of the vinyl chloride paste is reduced.

[Pinhole Test Step] Next, the glove forming mold 1 in the above-mentioned film forming state is transferred to the pinhole testing step, and the glove forming mold 1 is made of a material having excellent conductivity, so that the film forming state is maintained. The degree of electrical insulation is measured to check for the presence of pinholes ((d) in FIG. 1).

In this embodiment, the glove mold 1 in the above-mentioned film-forming state is placed in a water tank 8 on which an electrode 9 is set and filled with a solution obtained by adding a surfactant having excellent permeability in 1% saline. Is immersed, and the other electrode 10 is brought into contact with the surface of the mold 1 located above the water tank 8 in the immersed state, thereby measuring the degree of electrical insulation of the glove and confirming the presence or absence of pinholes. It is optional to add a surfactant having excellent permeability, but a nonionic surfactant can be used as the surfactant, for example, 1% saline.
About 0.1% with respect to

[Release Step] After the pinhole test step, the gloves 6 are successively transferred to the release step and reversed to form gloves 6 (FIG. 1 (e), FIG. 2 ( d)
).

Next, specific embodiments will be described.
A glove mold 1 adjusted to a mold temperature of 50 ° C. is immersed in a vinyl chloride paste 2 having a liquid temperature of 35 ° C. according to the following formulation (a),
After pulling up, semi-curing was performed at 170 ° C. for about 4 minutes, and then cooled to the mold temperature to form a glove body 3.

[Blending (A)] Vinyl chloride paste resin (degree of polymerization = 1650) 100 PHR Plasticizer (DOP, polyester) 100 PHR Stabilizer (Ca-Ba-Zn) 4 PHR Gelling agent (Ca / Si) 4 PHR Pigment 1 PHR

Then, the glove mold 1 having the thin film layer of the glove body 3 formed above is dipped in an emulsion type surface treatment agent (solution temperature 25 ° C.) 4 having the following composition (b) (60 cm / Min) and pull up (30cm / min)
Then, an antibacterial surface treatment layer 5 is formed on the surface (inner surface) 3a of the glove body 3 to a desired thickness. The thickness is arbitrary and is not limited at all. And after a while
Pre-dry at 140 ° C for 2 minutes, cure at 220 ° C for 8 minutes, and cool to 70 ° C.

[Blending (b)] Polyester urethane emulsion 175 parts by weight (solid content 40%) methacryloxyethyltrimethylammonium chloride emulsion 50 parts by weight (solids content 40%) Polyvinyl chloride emulsion 20 parts by weight (solids content 50%) ) Water 555 parts by weight Polyethylene oxide nonyl phenyl ether 5 parts by weight Total 805 parts by weight (solid content 12%) Polymer content 100

Then, after the ear 7 is cut, it is transferred to a pinhole step, and the glove mold 1 on which the glove body 3 and the surface treatment layer 5 are formed is set on the electrode 9 and is set to 1%.
The glove mold 1 in the above-mentioned film forming state is immersed in a water tank 8 filled with a solution obtained by adding a nonionic surfactant (a surfactant having excellent permeability) to a saline solution. 8 on the surface of the mold 1 located above
The gloves are brought into contact with each other to measure the degree of electrical insulation of the gloves and to confirm the presence or absence of pinholes. The degree of insulation was measured by dipping the glove mold 1 and measuring the resistance between the electrodes 9 and 10 after 10 seconds. The instrument used for the measurement was JIS C1202.
(Circuit meter) Use a circuit meter specified in (Circuit meter), and keep the temperature of the solution at 20 to 30 ° C.

Then, after passing through the pinhole test process, the product is transferred to a release process, in which non-defective products and defective products are discriminated, and the gloves 6 are sequentially formed by reversing and releasing. In the present embodiment, the glove 6 is attached to the main body 3 made of vinyl chloride paste.
And the surface treatment layer 5 provided on the inner surface 3a of the glove, so that the glove has a high degree of electrical insulation, which was conventionally low. Sorting is reliable and easy. Here, the electrical insulation degree (Ω) of the formed glove A of this example is shown in Table 1 below in comparison with an untreated product, a suspension-polymerized PVC product, and a pinhole product.

[0025]

[Table 1]

[0026]

The present invention comprises a series of steps as described above, forming a glove mold having excellent conductivity, immersing the mold in a saline solution tank in which electrodes are set, and forming the other electrode by the above-described molding. Since the degree of electrical insulation is measured by contacting the mold, even a glove pinhole test can be performed in-line, and the working time in the manufacturing process can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall process diagram schematically showing an embodiment of the present manufacturing method.

FIG. 2A is a partially enlarged cross-sectional view of a glove mold, and FIG.
Fig. 5 is a partially enlarged cross-sectional view after forming a glove body, (c) is a partially enlarged cross-sectional view after forming a surface treatment layer, and (d) is a partially enlarged cross-sectional view of the glove after reversal of mold release.

[Explanation of symbols]

 1: Glove molding die 3: Glove body 5: Surface treatment layer 6: Glove 8: Water tank 9, 10: Electrode

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁷ identification code FI B29L 31:48 B29L 31:48 (58) Field surveyed (Int.Cl. ⁷ , DB name) B29C 41/14 A41D 19/04 B29C 41/40 B29C 41/52

Claims (1)

(57) [Claims] A glove mold having excellent conductivity is formed, the glove mold is immersed in a vinyl chloride paste to form a glove body, and then the glove body having the glove body formed thereon is placed on the surface. The glove body and the mold on which the surface treatment layer was formed were immersed in a saline solution tank in which electrodes were set, and the other electrode was placed in a water bath. A method for producing ultra-thin vinyl chloride gloves, comprising measuring the degree of electrical insulation by contacting the mold located above, and then inverting the mold.