JPS6120281B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a watch band made of natural leather used for a wristwatch.

As is well known, when producing natural leather, the raw hide adjusted through preparatory work is tanned and then subjected to finishing work such as dyeing and greasing.

However, if a natural leather watch band manufactured in this manner is worn on the wrist and used for a long period of time, a "rash" may occur on the skin, although this is extremely rare. As a result of repeated research by the inventors of the present invention regarding the causes of this "rash", it has been found that the following various factors are involved in the occurrence of "rash".

In other words, in the tanning process of raw hides, tanning agents of chromium compounds are often used, and deleterious substances such as sulfonic acid derivatives such as phenol, cresol or naphthol, and formaldehyde derivatives are also used as leather tanning agents. , Deleterious substances such as sulfuric acid, hydrochloric acid, and formic acid are used as pickles. Furthermore, during chrome tanning, deleterious substances such as formic acid and oxalic acid are often generated. on the other hand,
Deleterious substances such as formaldehyde and various alkalis are also used in the finishing process. Deleterious substances such as these chromium compounds usually remain in small amounts in natural leather watch bands, and dyes used in the dyeing process also remain in natural leather watch bands. If such a watch band is used, deleterious substances such as chromium compounds and dyes may be leached directly from the band surface or dissolved and leached out by sweat generated from the skin.
It irritates the skin and causes a rash. Furthermore, in the finishing process, fatliquing treatment is often performed using animal and vegetable oils, and in this case, a considerable amount of animal and vegetable oils remains on the surface and inside of the band of the product.
If such a watch band is used for a long period of time, oils and fats will break down due to sweat and heat from the skin, producing fat decomposition products, creating an environment suitable for the growth of bacteria on the surface and inside of the watch band. It is easy to form, and
Since natural leather itself is porous, sweat, oil, etc. from the skin tend to adhere and remain, creating an atmosphere suitable for the propagation of germs. For this reason, bacteria such as mold can multiply, and their toxins can cause a rash or cause the rash to fester.

In addition, in order to prevent the bad odor of the watch band due to sweat and the rough skin of the part of the wrist where the watch is worn, waterproof fabrics made of a fabric with a good feel such as felt fabric or fabric such as leather impregnated with a waterproofing agent and a desiccant agent, Attaching an anti-odor and anti-cold cloth to the back side of a watch band was proposed, for example, in Japanese Utility Model Publication No. 537 of 1972, and a method of applying a disinfectant to cowhide to prevent the growth of mold was disclosed in, for example, Japanese Patent Publication No. 51-1983. 44171, but as mentioned above, it has not been known that toxins caused by the growth of bacteria such as mold cause skin irritation and suppuration.

Furthermore, as mentioned above, natural leather products contain many finishing agents for tanning, fatliquing agents (fish oil, vegetable oil, synthetic oil, etc.), and other chemicals on their surfaces, and these substances are closely attached to the leather tissue. It's attached. For this reason, even if a sterilizing agent is simply applied or immersed to form a film on the surface of natural leather, the sterilizing agent alone has a weak bond with the above substances, so even if a sterilizing film is formed, it will take only a short time. It peels off, falls off, and loses its bactericidal effect.

This invention was made based on the above-mentioned knowledge, and focused on the proliferation of various bacteria such as mold among the various causes of "rashes" mentioned above.
By preventing this, the occurrence of "rash" is prevented as much as possible, and it has a good affinity with tanning chemicals and fatliquors that are bound to natural leather, and also has good affinity with the skin tissue. The surface treatment is achieved by dispersing the disinfectant in a solution of a surface treatment agent that fully penetrates and adheres to the natural leather, and which also has a good affinity for the disinfectant, allowing it to soak into the natural leather and forming a film on its surface. A skin rash prevention watch that allows the antibacterial agent to seep into the leather, prevent the fungicide from peeling off from the leather, and protect the skin with a surface treatment agent that reliably maintains the skin rash prevention effect for many years. The purpose is to provide bands.

That is, the watch band of the present invention has 2-(4-thiazolyl)- on the surface of the band material of natural leather.
Benzimidazole, N-(fluorodichloro-
Methylthio)-phthalimide, N-dimethyl-
A cellulose lacquer containing a dispersion mixture of a fungicide selected from the group consisting of N'-phenol-N'-(fluorodichloro-methylthio)-sulfamide, O-phenylphenol, chlorhexidine, Vantosil IB and Proxel; It has a structure characterized in that a film is formed by adhering a surface treatment agent solution made of one selected from the group consisting of amino acid resins, nylon resins, urethane resins, acrylic resins, and modified resins thereof.

This invention will be specifically explained below.

In this invention, the film in which the fungicide is dispersed may be any film made of a common surface treatment agent that has been conventionally used to protect the surface of natural leather, synthetic leather, etc. or to give it luster. Therefore, when manufacturing the watch band of the present invention, a disinfectant is uniformly dispersed and mixed in a solution of a conventional surface treatment agent as described above, and this is applied to the band material in the same manner as in a conventional surface treatment. good. As the usual surface treatment agent, for example, a cellulose lacquer, an amino acid resin, a urethane resin, an acrylic resin, or a modified resin thereof dissolved in a respective solvent is used. The disinfectant may be one that is as harmless as possible to the human body, such as those dispersed in food packaging materials, such as plastic films for food packaging, such as 2-(4-thiazolyl). )-benzimidazole, i.e. thiabendazole or
A fungicide abbreviated as TBZ, N-(fluorodichloro-methylthio)-phthalimide, a fungicide commercially available under the trade name Preventol A3, and N-dimethyl-N'-phenyl-N'-(fluorodichloro-methylthio)-phthalimide, -methylthio)-sulfamide,
i.e., the fungicide commercially available under the trade name Priventol A4, or O-phenylphenol, chlorhexidine, Vanthocil IB.
(Vantocil IB), Proxel, etc. can be used. All of these prevent the growth of bacteria such as mold.

If such a disinfectant is uniformly added and mixed with the surface treatment agent mentioned above and applied to the natural leather of the band material by a known method such as spraying, dipping, or brushing, the disinfectant will be uniformly applied. A film dispersed in is formed on the surface of the natural leather of the band material. Note that the amount of fungicide added is arbitrary, but
Usually, it is sufficient to add about 0.1 to 0.5% of the surface treatment agent.

By forming a film of a surface treatment agent in which a disinfectant is dispersed in this manner, the growth of various germs such as mold on the surface and inside of the band is inhibited.

Therefore, by using the watch band of the present invention, the skin will not be irritated by the toxins of bacteria such as mold, causing a rash, and the areas affected by the rash due to these bacteria will not be irritated. The watch band will not fester, so the user can use the watch band with peace of mind.

In particular, in the present invention, 2-(4-thiazolyl)-benzimidazole, N-(fluorodichloro-methylthio)-phthalimide, N-dimethyl-N'-phenyl-N'- (Fluorodichloro-methylthio)-sulfamide, O-phenylphenol, chlorhexidine, Vantosil IB, and Proxel; cellulose lacquer, amino acid resin, nylon resin, urethane; A film was formed by adhering a surface treatment agent solution made of a material selected from the group consisting of resins, acrylic resins, and these modified resins, so the surface treatment agent penetrated into the natural leather tissue and created strong bonds. It combines with tanning chemicals and fats from fatliquors near the surface to form a strong film. At the same time, the bactericidal agent dispersed and bonded to the surface treatment agent also remains stably in the internal tissue and external skin of the natural leather, maintaining the bactericidal effect and the effect of preventing skin irritation over a long period of time.

Claims (1)

[Claims] 1. On the surface of the natural leather band material, 2-(4-
thiazolyl)-benzimidazole, N-(fluorodichloro-methylthio)-phthalimide, N-
Dimethyl-N'-phenyl-N'-(fluorodichloro-methylthio)-sulfamide, O-phenylphenol, chlorhexidine, vantosil
A cellulose lacquer in which a fungicide selected from the group consisting of IB and Proxel is dispersed, an amino acid resin, a nylon resin, a urethane resin, an acrylic resin, and a resin modified from these resins. A watch band for preventing skin irritation, characterized in that a film is formed by adhering a surface treatment agent solution consisting of: