JPS5854010A - Air permeable polyurethane glove and production thereof - 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 The present invention provides a breathable polyurethane glove characterized in that the finger portions are made of an impermeable film, and the body other than the finger portions is made of a film that does not allow water to pass through but is breathable. Polyurethane gloves and their manufacturing method.

Conventionally, surgical rubber gloves have been used as gloves for handling delicate parts, but they are easy to use, but they have the drawback of being impermeable and making your hands sweaty. Therefore, in order to eliminate the discomfort caused by sweat while wearing gloves, breathable gloves have been required since the inception of the rubber glove industry. has never been commercially available. This is because when a synthetic resin (e.g. polyurethane) film is made breathable, the film becomes porous and its physical strength is significantly reduced, making it easy for fingertips to break.
This is thought to be due to the drawback that the thinner the film, the weaker it becomes.

However, in recent years, the number of workplaces involving electronics, semiconductors, and precision work has increased, and there have been an increasing number of cases in which even the slightest bit of sweat or oil from human hands can adhere to products.

The purpose of the present invention is to provide a breathable glove suitable for such work with delicate fingertips. This is a breathable polyurethane glove, characterized in that the main body of the glove is made of a membrane that does not allow water to pass through but is conductive. Then, apply the solution to a glove shape, pull it up, immerse it in water, pull it up and dry it, then immerse only the fingers of this glove shape in a dimethylformamide solution of polyurethane resin, then pull it up and dry it. -Is b the polyurethane resin? Dip only the finger portion of the glove shape into the γY mido solution so that the solution adheres only to the finger portion, pull it up, dry it, and then immerse the glove shape up to the shaft portion in a dimethylformamide solution of polyurethane resin again. This is then immersed in water, pulled up and dried □ to form a breathable polyurethane glove with an impermeable film on the fingers and a breathable film on the body except for the fingers. This is a method for producing a breathable polyurethane glove characterized by obtaining.

The present invention will be explained in detail below.

The breathable polyurethane glove of the present invention has one finger portion made of an impermeable film, and the main body other than the finger portions made of a water-impermeable but breathable film.

Here, the term "finger part" does not refer to a part of the finger, but refers to the entire length of one finger or an appropriate length between the tip of the finger and the base of the finger.

An embodiment of the breathable polyurethane glove of the present invention will be described according to the drawings. One drawing is a front view thereof.

Any polyurethane resin can be used to produce the breathable polyurethane gloves of the present invention, but thermoplastic polyurethane resins are suitable, such as Crisbon G/6 (manufactured by Dainippon Ink Co., Ltd.). (dimethylformamide solution of thermoplastic polyurethane resin), etc. are used.

And the dimethylform solution of polyurethane resin is 1
The solution preferably has a viscosity of about 000 to 1 IOD'Ocp.

Conventionally, polyurethane-coated gloves were prepared using a solution of polyurethane in dimethylformamide (3000~yoo).

Immerse the glove mold in the viscosity of EP to the shaft part and pull it out.
Either dry it as it is at gθ ~ 00C, or immerse it once or several times in the same way to obtain the desired thickness.
The polyurethane gloves obtained by this method are not breathable, although they are manufactured by peeling the gloves from the glove mold after drying.

In the method of the present invention, a glove mold made of one ceramic, one metal, and one plastic is first immersed in a solution of polyurethane resin in dimethylformamide up to the shaft part, for example, by about q minutes, and the solution is attached to the glove mold, and then pulled out. - This is immersed in water for about 7 to 0 minutes, preferably about 100 minutes, and dimethylformamide is extracted into the water, replaced with water, and then pulled up for 20 to 100 minutes.
7: Drys to a moderate degree. This produces a water-impermeable but breathable polyurethane film on the glove mold.

Next, immerse only the finger portion of this glove-shaped part in a solution of polyurethane resin for about 30 seconds or more, then pull it out and dry it at 70-100 liters. Only the fingers are coated with an impermeable polyurethane film.

When the glove is peeled off from the glove mold, the breathable polyurethane glove of the present invention is obtained.

'Also, first, only the finger portion of a glove-shaped glove made of ceramic, metal or plastic is immersed in a dimethylformamide solution of polyurethane resin for about 30 seconds or so, and the solution is applied only to the glove-shaped finger portion. Attach it and pull it up - this 2
It dries at about θ to θθC to form an impermeable polyurethane film only on the fingers.

Next, this glove shape is immersed up to the shaft in a dimethylformamide solution of polyurethane resin for about 1 minute, for example, and then immersed in water for 1 to IQ minutes, preferably 1 to 1 minute, and pulled out. ~1007: Dry at about.

When you sniff it, only the fingertips are impermeable, and the rest of the body becomes a membrane that is impermeable to water but breathable. If necessary, by repeating this dipping and drying process two or more times, one thick piece can be obtained.

When the glove is thus peeled off from the glove mold, the breathable polyurethane glove of the present invention, which is the object of the present invention, can be obtained.

Incidentally, by using a solution in which carbon is added to a dimethylformamide solution of a polyurethane resin, an electrically conductive and breathable polyurethane glove can be obtained.

The gloves of the present invention have an impermeable film on only one finger, and the rest of the body is impermeable to water but has a breathable film, so it can be used for fine fingertip work as described above. It is very useful when using the method to prevent sweaty hands.Next, examples of the method of the present invention will be shown, but the present invention is not limited thereto.

Example 1 Dimethylformamide (hereinafter referred to as -DMF) was added to Crispon gttt (manufactured by Inu Nippon Ink Co., Ltd.), which is a dimethylformamide solution of thermoplastic polyurethane resin, to form a polyurethane with a non-volatile content of 110θcp.
MF solution rMy was prepared.

The methylformamide that covered the shaft of the ceramic glove was extracted into water, replaced with water, and then pulled up and dried with hot air at 70C.

Next - this glove shape is coated with DMF of the above polyurethane resin.
Slowly immerse your finger in the solution up to the base of your finger for about 1 minute and then remove it.
After drying with hot air at 70'C, the gloves were peeled off from the glove mold to obtain breathable polyurethane gloves.

The thickness of these gloves is 0.0g to 0.1rran, the fingertips are impermeable and strong enough to withstand precision work, and the part from the base of one finger to the shaft is porous and breathable.60
I didn't sweat even after wearing it for several minutes.

On the other hand, polyurethane gloves manufactured by a conventional method using the same polyurethane DMF solution as described above were found to become sweaty within 5 minutes after being worn.

Example 2 Using the same polyurethane resin as described in Example 1, the solution was evaporated and dried with hot air at 70C.

Next, the shaft part of this glove shape was immersed in the above-mentioned polyurethane water for 1 minute. DMF was extracted into the water and replaced with water, then pulled up and dried with hot air at -70'C, and then peeled off from the glove shape and ventilated. Polyurethane gloves were obtained.

The thickness of this glove was 0.0K-0.1 tan, providing the above-mentioned finger breathability, and the glove did not sweat even after being worn for 160 minutes.

Example 3 Example 1 A solution obtained by kneading DMF to which acetylene carbon black was added and Crisbon Gilt using a mill was prepared.
DM of polyurethane resin made as described in
A DMF solution of a polyurethane resin in which carbon black was uniformly dispersed was obtained by adding it to the F solution and stirring and mixing (the amount of carbon black to the polyurethane resin in the solution was about 30 times fjk).0 The solution obtained in this way , DMF of polyurethane resin
Breathable polyurethane gloves were manufactured in the same manner as described in Example 1, except that the solution was used instead. The wall thickness of these gloves was 0. Og~0. /rtan, it became conductive from the base of one finger to the shaft, and the electrical resistance value was 10 to 05 Ω [3 pieces of battery-powered insulation resistance testers manufactured by Yokotsutsu Electric Co., Ltd., model 13 (j 00V/1000Ω)].

In addition, this glove was porous and breathable from the base of the fingers to the shaft, and did not sweat even after being worn for 160 minutes.

[Brief explanation of the drawing]

The drawing is a front view of an embodiment of the breathable polyurethane glove of the present invention. 1... Breathable polyurethane gloves -2... Finger parts,
3. Main body except for the e-finger part. 11-

Claims (2)

[Claims] (1) A breathable polyurethane glove characterized in that the finger portions of the glove are made of an impermeable film, and the body other than the finger portions is made of a water-impermeable but breathable film. (2) Dip the glove type up to the stem in a dimethylformamide solution of polyurethane resin, apply the solution to the glove type, pull it up, immerse it in water, pull it up, dry it, and then re-apply the finger part of the glove type. Either immerse only the glove in a dimethylformamide solution of polyurethane resin, then pull it up and dry it, or immerse only the finger part of the glove in a dimethylformamide solution of polyurethane resin, apply the solution only to the finger part, and then pull it out. After drying, this glove type is immersed up to the stem in a dimethylformamide solution of polyurethane resin, then immersed in water, pulled up, and dried to form an impermeable film on the fingers. A method for producing a breathable polyurethane glove, characterized in that a breathable polyurethane glove is obtained in which the main body other than the part is made of a film impermeable to water but breathable.