JP2004162249A - Antibacterial/mildewproof glove and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide antibacterial/mildewproof gloves suppressing propagation of harmful bacteria and mildew on the inside surface of the glove even after repeated uses or long time use and usable for a person having delicate skin. <P>SOLUTION: The method for producing antibacterial/mildewproof gloves and moistureproof gloves is provided, wherein each globe comprises a substrate of rubber or a synthetic resin and is treated with chitosan. <P>COPYRIGHT: (C)2004,JPO

Description

  The present invention relates to an antibacterial / antifungal glove and a method for producing the glove. More particularly, the present invention relates to gloves for home use, surgery and other work, which use chitosan and have excellent antibacterial properties, antifungal properties, deodorant properties and moisturizing properties, and a method for producing the same.

  BACKGROUND ART Conventionally, at the time of water work such as cooking and washing, rubber gloves made of natural rubber, acrylonitrile-butadiene rubber (NBR) and the like, and soft vinyl chloride resin gloves have been used. In many cases, these gloves have an inner surface subjected to a flocking process using short fibers such as a pile to improve detachability and keep warm during water work.

  However, such gloves have a problem that moisture is accumulated on the inner surface of the glove due to repeated sweating or sweating from a hand for a long time, and a state in which harmful bacteria and mold are easily propagated is formed. Had a point.

  As means for solving these problems, antibacterial agents such as an inorganic antibacterial agent and an organic antibacterial agent (2- (4'thiazolyl) benzimidazole) having very low solubility in water or a solvent are applied to the base of the glove itself. A method of compounding the agent and gloves in which short fibers subjected to antibacterial processing with the antibacterial agent are implanted on the inner surface of the glove (Patent Document 1), and an antibacterial agent such as triclosan having a slight solubility in water or a solvent are applied to the inner surface of the glove body. Work gloves (Patent Document 2) to which a fine hair material is adhered via an added emulsion adhesive have been proposed.

However, the antibacterial component such as the above-mentioned inorganic antibacterial agent blended with the antibacterial agent in the glove base has an insufficient antibacterial and antifungal effect on the inner surface of the glove, and the antibacterial agent such as triclosan on the glove body. In gloves to which fine hair material is attached via an emulsion-based adhesive to which antibacterial agents have been added, the antibacterial agent kills resident bacteria on the skin and eliminates the effect of preventing the invasion of harmful bacteria by sterilizing the resident bacteria. Therefore, there is a problem that consideration for the user's hand is insufficient. Therefore, none of the conventional gloves to which the antibacterial component has been applied has been satisfactory.
JP-A-63-135504 JP-A-63-102719

  Therefore, the development of gloves that can suppress the growth of harmful bacteria and mold on the inner surface of gloves even after repeated use or prolonged use, and that can be used safely by people with weak skin. Was desired.

  The present inventors have conducted intensive studies to solve the above problems, and as a result, by treating gloves with chitosan, which has an antibacterial and antifungal effect, and also excellent in deodorant and moisture retention, an excellent antibacterial and antifungal effect is obtained. The present inventors have found that a glove which is easy to hold and has can be provided, and the present invention has been completed.

  That is, the present invention provides an antibacterial / antifungal glove, which is a glove whose base is made of rubber or synthetic resin, and which is treated with chitosan.

  The present invention also provides the above antibacterial and antifungal glove, wherein the treatment with chitosan is performed by incorporating chitosan into a glove base, and a method for producing the glove.

  Further, the present invention provides the above antibacterial / antifungal glove, wherein the treatment with chitosan is performed by applying a chitosan-containing liquid to the inner surface of the glove base, and a method for producing the glove.

  Furthermore, the present invention provides the above-mentioned antibacterial / antifungal glove and a method for producing the same, wherein the treatment with chitosan is performed by applying a short fiber containing chitosan to the inner surface of the glove base.

  Still further, the present invention provides the antibacterial / antifungal glove and the method for producing the same, wherein the treatment with chitosan is performed by incorporating chitosan into an adhesive for adhering short fibers to the inner surface of the glove base. It is.

  Antibacterial and antifungal gloves of the present invention, since gloves formed of rubber or synthetic resin are treated with chitosan having an antibacterial or antifungal action, without affecting the microorganisms resident on the skin surface, The generation of microorganisms and mold inside the glove can be suppressed, and the generation of offensive odor and the like can be prevented. Further, the antibacterial / antifungal glove of the present invention provides a rubber or synthetic resin glove having a soft feeling of use in addition to moisturizing the hand and preventing roughening of the hand due to the moisturizing effect of chitosan. Can be done.

  The antibacterial / antifungal glove of the present invention is characterized in that a glove whose base is formed of rubber, synthetic resin or the like is treated with chitosan.

  The glove substrate of the present invention is made of rubber or synthetic resin. Specifically, after a hand mold made of a known material such as ceramic, metal, glass or wood is immersed in a resin liquid such as a latex or a synthetic resin dispersion, the resin liquid adhered to the hand mold It is manufactured by means such as solidification.

  Examples of latex used as a resin liquid in the production of a glove substrate include natural rubber (NR), acrylonitrile-butadiene rubber (NBR), chloroprene rubber (CR), styrene-butadiene rubber (SBR), and isoprene rubber (IR). ), Synthetic rubbers such as polyurethane (PU), and special rubbers. These synthetic rubbers and the like can be directly used as a resin liquid as a raw material of the glove base, but a resin liquid obtained by blending a vulcanizing agent, a vulcanization accelerator, a softening agent, a filler, and the like with these synthetic rubbers and the like is used as the resin liquid. May be used.

  Examples of the synthetic resin dispersion include a dispersion in which a synthetic resin such as vinyl chloride and acrylic is dispersed in a plasticizer, a solvent, or the like, and these can be used as the resin liquid.

  On the other hand, chitosan used for treating the glove base in the antibacterial / antifungal glove of the present invention is a deacetylated product of chitin contained in shells of crustaceans such as crabs and shrimps, and is the only natural product. It is a polysaccharide having an amino group which has been known for its antibacterial and antifungal effects, as well as its deodorant and moisturizing effects. This chitosan exists as a white or reddish solid and is a water-insoluble substance. Chitosan is a kind of so-called dietary fiber that is soluble in a dilute acid solution but is not digested by human digestive enzymes.

  Chitosan can be obtained by heating chitin with concentrated alkali.A more specific method for producing chitosan is to use crab and shrimp-derived shells as raw materials, deproteinize this with a dilute sodium hydroxide aqueous solution, and then dilute hydrochloric acid. After decalcification with an aqueous solution to obtain chitin, the chitin is heated and reacted with a concentrated aqueous sodium hydroxide solution to deacetylate, followed by washing with water, drying, and pulverization to obtain chitosan as a target substance.

  In the present invention, the particle size of the chitosan used is not particularly limited, but it is preferable to use a powder having a particle size of 3 mm or less in order to improve its solubility and dispersibility. In particular, when chitosan is dispersed in a liquid as in the case of a chitosan-containing liquid described later, or when it is contained in a resin liquid or the like and used in the form of a suspension (suspension), the chitosan is uniformly dispersed in the liquid. It is preferable to use a fine powder of 100 mesh or less.

  In the present invention, gloves are treated with this chitosan to obtain antibacterial / antifungal gloves. There are no particular restrictions on the manner in which the glove is treated with chitosan, and examples thereof include the following aspects (1) to (4).

(1) A method of including chitosan in the glove substrate itself (2) A method of applying a chitosan-containing liquid to the inner surface of the glove substrate (3) A method of applying short fibers containing chitosan to the inner surface of the glove substrate (4) Gloves A method of incorporating chitosan into an adhesive for attaching short fibers to the inner surface of a substrate

  Among them, in the embodiment (1), chitosan may be contained in the above resin solution to obtain a resin solution containing chitosan, and a glove base may be prepared using the resin solution.

  The antibacterial / mildewproof glove according to this embodiment (1) can be manufactured, for example, using the following method. That is, the latex or synthetic resin dispersion containing chitosan is dipped in a glove mold and then pulled up, or the resin solution is showered on the entire glove mold to adhere the resin to the entire mold, and then the entire glove mold is heated. To solidify. Then, after the glove base is solidified, the glove base is inverted and peeled from the hand mold to obtain an antibacterial / antifungal glove containing chitosan as a molded product in the glove base.

  In the case of this embodiment, if the glove base is rubber, it differs depending on the type of latex. For example, in the case of NBR, the time for dipping the glove mold in latex may be about 1 to 120 seconds. The drying and cross-linking conditions are generally preferably such that after drying at 80 to 100 ° C for 10 minutes or more, heating at 100 to 130 ° C for about 15 to 30 minutes.

  On the other hand, when the glove base is a synthetic resin such as polyvinyl chloride, the time for immersing the glove mold in the dispersion may be about 5 to 120 seconds, and the conditions for solidification vary depending on the components of the synthetic resin. Generally, it is preferable to heat at 150 to 230 ° C. for about 2 to 15 minutes.

  In addition, in the aspect (1), the content of chitosan is not particularly limited, but is preferably 0.05 to 10% by mass (hereinafter, simply referred to as “%”) based on the entire glove. More preferably, it is set to 1 to 5%.

  Next, in the mode (2), an antibacterial / antifungal glove is obtained by applying a chitosan-containing liquid for dispersing or dissolving chitosan to the inner surface of the glove base.

  The chitosan-containing liquid can be prepared by dispersing chitosan in a liquid capable of dispersing chitosan, for example, water, an organic solvent such as dioctyl phthalate, a coating liquid such as an acrylic coating liquid, or a resin liquid.

  Since chitosan is insoluble in water but easily dissolved in weak acids, an aqueous chitosan solution obtained by dissolving chitosan in a weak acid aqueous solution may be used as the chitosan-containing liquid. Examples of the acid component that can be used for preparing the chitosan aqueous solution include, for example, acetic acid, hydrochloric acid, formic acid, lactic acid, malic acid, adipic acid, and the like. % Chitosan may be dissolved in a weak acid aqueous solution containing about 5% to obtain a chitosan aqueous solution. Among the above-mentioned acid components, it is preferable to use an acid which evaporates after treating the inner surface of the glove or the short fiber, for example, acetic acid.

  In this embodiment (2), lubricant fine particles can be further dispersed in the chitosan-containing liquid. It is preferable to use such a dispersion containing fine particles of lubricant and chitosan, since it is possible to adhere chitosan to the inner surface of the glove base and to adhere fine particles of lubricant to the inner surface.

  Furthermore, examples of the lubricant fine particles that can be used together with chitosan include silica-based or cross-linked styrene-based particles and acrylic-based particles, and one or more of these can be used. The shape of the lubricant fine particles is not particularly limited, but particles having no corners, particularly particles having a nearly spherical shape, are preferable, and the particle size is preferably about 1 to 50 μm.

  The method for preparing the antibacterial / antifungal glove according to the mode (2) is performed by first preparing a glove base, and then applying a chitosan-containing liquid to a portion inside the glove base.

  The glove substrate used in this embodiment is not particularly limited, and is the same as the glove substrate used in the above embodiment (1) except that chitosan is not contained in the latex or synthetic resin dispersion. The glove base may be prepared according to the production method described in (2). Examples of means for applying the chitosan-containing liquid to the inner surface of the glove base include a method of spraying the chitosan-containing liquid on the glove base and a method of dipping the glove base in the chitosan-containing liquid.

  After applying the chitosan-containing liquid to the inner surface of the glove base in this manner, heating and drying at 70 to 130 ° C. for about 5 to 30 minutes to remove water and adhere the chitosan to the inner surface of the glove base, The antibacterial and antifungal gloves having chitosan adhered to the inner surface of the glove base can be obtained by reversing and peeling from the hand mold.

  In the embodiment (2), the amount of chitosan attached is not particularly limited, but is preferably 0.05 to 5%, more preferably 0.1 to 1%, based on the solid content of the chitosan-containing liquid. .

  The chitosan-containing liquid may be applied after the glove base is completely solidified. However, the chitosan-containing liquid may be applied in a sol state or a semi-gel melted state where the surface of the glove base is not completely solidified (uncrosslinked state in the case of latex). Means of applying the liquid content and then heating the glove substrate again may be used.

  In order to make the surface of the glove base into a sol state or a semi-gel melted state, the heating temperature or the heating time may be reduced as compared with the conditions for complete solidification, for example, at 150 ° C. for about 3 minutes. What is necessary is just to heat. Then, after the chitosan-containing liquid is applied to the glove base formed under these conditions, the glove base is completely solidified and the chitosan-containing liquid can be dried by heating again at 180 to 230 ° C. for about 10 minutes. When a resin coating solution or a resin solution such as an acrylic emulsion adhesive or vinyl chloride sol is used as the chitosan aqueous solution, the glove base is completely solidified by heating again, and the chitosan is applied to the surface of the glove base. Is preferred because a resin layer containing

  Further, in the mode (3), an antibacterial / antifungal glove is obtained by applying a short fiber containing chitosan to the inner surface of the glove base. In the present specification, the term “adhering” refers to a state in which short fibers are naturally or randomly attached to the inner surface of the glove base, and includes a state in which electrostatic fibers are implanted.

  In the embodiment (3), the short fiber used for the application is not particularly limited as long as it can contain chitosan, and may be any of a natural fiber, a synthetic fiber, and a chemical fiber. Examples include natural fibers such as cotton, wool and silk; chemical fibers such as rayon (including viscose rayon); cupra, acetate, and lyocell; and synthetic fibers such as polyethylene, polypropylene, polyester, and nylon. Among them, it is preferable to use chemical fibers such as rayon and natural fibers such as cotton from the viewpoint of easy inclusion of chitosan.

  The above-mentioned short fibers can be made to contain chitosan by a conventionally known method. For example, spinning a mixed solution in which chitosan is mixed with a raw material liquid at the time of fiber production, preparing a fiber in which chitosan is mixed, shredding the obtained fiber into single fibers, and before shredding the fiber. Alternatively, a method of impregnating the fibers with the above-described chitosan aqueous solution (a solution in which chitosan is dissolved in a weak acid aqueous solution) by padding, spraying, or the like after the shredding and drying the fibers may be used. When using chemical fibers such as rayon (including viscose), it is preferable to use the former method from the viewpoint of the persistence of the effect. For example, a solution composed of chitosan viscose or chitosan viscose and cellulose viscose A method of spinning a mixed solution obtained by mixing the courses and finely cutting the obtained fiber, or a method of finely cutting a fiber obtained by kneading chitosan into fibers to obtain short fibers can be used. On the other hand, when natural fibers such as cotton are used, the latter method is preferably used. As the fibers prepared by the former method, chitopoly (manufactured by Fuji Boseki Co., Ltd.) and Clavion (manufactured by Ohmicenshi Co., Ltd.) are commercially available, and these may be used.

  As the short fibers containing chitosan (hereinafter, referred to as "chitosan short fibers"), those having a thickness of 0.1 to 100 dtex, preferably 0.5 to 5 dtex can be used. In addition, the length thereof can be 0.1 to 50 mm, preferably 0.3 to 2 mm. Further, the amount of the short fiber to be applied may be 0.1 to 30 g for one pair of gloves (both right and left), and is preferably 1 to 10 g. Furthermore, the content of chitosan in the chitosan short fiber is not particularly limited, but may be about 0.1 to 10%, and preferably 0.5 to 3%.

  The antibacterial / antifungal glove according to the mode (3) can be manufactured by using, for example, any of the following methods. First, as a manufacturing method 1, after a resin solution is adhered to a glove-shaped surface, chitosan short fibers are added to the surface of the resin solution while the resin solution is in a sol state or a semi-gel melted state (uncrosslinked state in the case of latex). After that, there is a method in which the resin liquid is solidified and chitosan short fibers are adhered to the glove surface.

  Production method 2 includes a method in which a resin liquid is attached to the surface of a glove mold, an adhesive is applied to a glove base obtained by solidifying the resin liquid, and chitosan short fibers are further adhered.

  Among these methods, the production method 1 is that the latex or synthetic resin dispersion is dipped in a glove mold and then pulled up, or the resin liquid is showered on the entire glove mold to adhere the resin to the entire mold, and the rubber or synthetic resin is applied. This is a method in which chitosan short fibers are applied while the resin is in a sol state or a semi-gel melt state, and then the entire glove mold is heated and solidified and molded.

  In the case of this production method, when the glove base is rubber, the type of latex varies depending on the type of latex. For example, in the case of NBR, the time for immersing the glove mold in latex is about 1 to 120 seconds, and then the chitosan staple fiber is immediately What is necessary is just to adhere. The conditions for drying / crosslinking vary depending on the type of latex. In the case of NBR, it is preferable to dry at 80 to 100 ° C. for 10 minutes or more and then heat at 100 to 130 ° C. for 15 to 30 minutes.

  When the glove base is made of a synthetic resin such as polyvinyl chloride, the time for immersing the glove mold in the dispersion is about 5 to 120 seconds, and heating is performed before heating or at 100 to 230 ° C. for about 1 to 10 minutes. The chitosan short fibers may be applied afterwards. The conditions for solidification vary depending on the components of the synthetic resin, but it is generally preferable to heat at 150 to 230 ° C. for about 2 to 15 minutes.

  On the other hand, in the production method 2, a resin solution such as a latex or a synthetic resin dispersion liquid is adhered to the surface of a glove mold, and then solidified to obtain a glove substrate. This is a method of applying fibers. In the present manufacturing method, the means for solidifying the glove base may be performed according to the manufacturing method described in the aspect (1).

  In the present production method, various adhesives can be used, but it is preferable to use a material similar to the glove base or a material having a similar polarity value. Alternatively, a resin liquid such as a latex or a synthetic resin dispersion may be used as an adhesive, and the glove base once solidified may be dipped again in these solutions, and after flocking, solidification may be performed.

  In both of the above-mentioned production methods, as a method of applying chitosan short fibers to the glove base, a conventionally known method can be used.For example, chitosan short fibers are put into a sieve, and a viscous Alternatively, a method of dropping on a non-crosslinked glove substrate, using a blower, connecting a tank filled with chitosan short fibers to the suction port of the blower, sucking the pile, and semi-geling the chitosan short fibers blown out from the blower outlet Examples of the method include a method of spraying a chitosan staple fiber sucked by a blower onto a glove base in a semi-gel state or a non-crosslinked state while letting out air by cyclone. If necessary, they can be applied by electrostatic flocking treatment, for example, a method in which electrostatic flocking using electrodes is combined. In the present invention, the short fibers are preferably subjected to an electrostatic flocking treatment.

  Still further, in the above-mentioned embodiment (4), an adhesive containing chitosan is applied to a glove substrate formed in advance and adhered thereto, and short fibers are applied to the glove substrate to which such an adhesive is adhered. To form an antibacterial / antifungal glove.

  In this embodiment, in the production method 2 of the embodiment (3), instead of using the short fiber containing no chitosan, the adhesive for attaching the short fiber contains chitosan, and the other points are common. Is what you do.

  Therefore, as the adhesive that can be used in the present embodiment (4), various adhesives described in the production method 2 of the embodiment (3) may be used except that chitosan is contained. As for the short fiber, the short fiber shown in the aspect (3) can be appropriately used except that it does not contain chitosan.

  Furthermore, the method for producing the antibacterial and antifungal gloves in this mode (4) may be performed in accordance with the method 2 of the mode (3). Further, in the present aspect (4), the amount of chitosan contained in the adhesive and adhered to the glove is not particularly limited, but may be about 0.1 to 5% based on the entire glove. , 0.5 to 3%.

  In addition, it is preferable to apply the above embodiments (3) and (4) in combination. That is, the short fibers containing chitosan are adhered with an adhesive also containing chitosan, and the antibacterial and antibacterial compounds of the present invention are applied. Antifungal gloves are preferable because not only the short fibers but also the adhesive in the gaps between the short fibers have an antibacterial and antifungal effect, so that the effects of the present invention can be maximized. To prepare the glove, the contents described in the above aspects (3) and (4) may be followed.

  Since the antibacterial and antifungal gloves of the present invention obtained as described above are obtained by treating the glove base with chitosan having an antibacterial and antifungal action, fungi and mold are generated on the inner surface of the glove base, and an unpleasant odor is generated. Does not occur. In addition, since chitosan also has a moisturizing effect, it is possible to prevent rough hands of people with weak skin or the like and to moisturize the hands.

  Next, the present invention will be described in more detail with reference to Examples and Production Examples, but the present invention is not limited to these Examples and the like.

Example 1
Production of vinyl chloride gloves (1) (the inner surface of the glove base is treated with a chitosan-containing liquid):
A ceramic hand mold was immersed in a vinyl chloride paste sol having the formulation shown in Table 1, pulled up at such a speed that the sol did not drip, and the vinyl chloride sol was attached to the surface of the hand mold. Next, the hand mold to which the sol was adhered was subjected to a heat treatment in a heating furnace at 190 to 220 ° C. for about 3 to 5 minutes to make a semi-gel melted state.

  The glove base in the semi-gel melted state was immersed in a chitosan-containing liquid having the formulation shown in Table 2 below for 1 second, pulled up, and dried at about 100 ° C. After drying, heat treatment was performed in a heating furnace at 200 to 230 ° C. for about 5 to 7 minutes to completely solidify the whole. After cooling, the glove was inverted and released from the hand mold to obtain a vinyl chloride glove (Product 1 of the present invention).

(Prescription of vinyl chloride paste sol)

(Prescription of chitosan-containing liquid)

Example 2
Manufacture of vinyl chloride gloves (2) (treatment of glove base inner surface with chitosan-containing liquid):
A vinyl chloride glove (Product 2 of the present invention) was obtained in the same manner as in Example 1 except that the amount of chitosan in the chitosan-containing liquid in Table 2 was changed to 0.12 parts by weight.

Comparative example 1
A vinyl chloride glove (comparative product 1) was obtained in the same manner as in Example 1 except that a solution obtained by removing chitosan from the formulation in Table 2 was used instead of the chitosan-containing solution.

Test example 1
Confirm the antibacterial effect of gloves:
The antibacterial effect of the gloves of the present invention products 1 and 2 and the comparative product 1 was determined in accordance with JIS Z2801: 2000 “Antibacterial processed product-Antibacterial test method / antibacterial effect (5.2 Test method for plastic products etc.)” It was confirmed by an antibacterial test according to the test method described above. The test strains used in the test were the following two types (i) and (ii).

(Test strain used)
(I) Escherichia coli: Escherichia coli IFO3972
(Ii) Staphylococcus aureus: Staphylococcus aureus IFO12732

  In addition, the bacterial solution was prepared by culturing the test bacterium at 35 ° C. for 18 hours using a normal broth medium, diluting it 500 times with sterile purified water, and adjusting the pH to 7.0 ± 0.2. A bacterial solution was used.

( Test method )
The palm parts of the gloves of Inventive Products 1 and 2 and Comparative Product 1 were cut into a size of 50 mm × 50 mm to obtain test samples. Each sample was placed in a sterile petri dish, and the test surface was inoculated with 0.4 ml of the bacterial solution, covered with a coating film (polyethylene film: size 40 × 40 mm), covered, and then heated to a temperature of 35 ° C. and a humidity of 99 ° C. % For 24 hours.

  After storage, the bacteria adhering to the coated film and the test piece are washed out with 10 ml of SCDLP broth medium, cultured at 35 ° C. for 48 hours on a standard agar medium, the number of viable bacteria is measured, the average value is calculated, and the antibacterial effect is calculated. Compared and evaluated. Table 3 shows the results. The test was performed with n = 3.

  Further, the antibacterial effects of the products 1 and 2 of the present invention were confirmed by calculating the antibacterial activity value R from the following formula (I) based on the average values shown in Table 3. Table 4 shows the results. In general, when the antibacterial activity value R is 2.0 or more, it can be determined that the antibacterial effect is excellent.

(Result: viable cell count)

(Result: antibacterial activity value)

  From the results in Table 3, the viable cell count after storage for 24 hours in the gloves of the present invention products 1 and 2 in which the inner surface of the glove base was treated with chitosan was significantly higher than the viable cell count of the glove of the comparative product 1 not treated with chitosan. There were few. In addition, from the results in Table 4, the antibacterial activity value of the gloves of the present invention products 1 and 2 was 2.0 or more against any of the bacterial species, and it was confirmed that the gloves were excellent in antibacterial effect. .

Example 3
Manufacture of vinyl chloride gloves (3) (contains chitosan in glove base):
A ceramic hand mold was immersed in a chitosan-containing vinyl chloride paste sol having the formulation shown in Table 5, and pulled up at such a speed that the sol did not drip, to attach the vinyl chloride sol to the surface of the hand mold. Next, the hand mold to which the sol was adhered was heated in a heating furnace at 200 to 230 ° C. for about 5 to 7 minutes to completely solidify the glove base. After cooling, the glove was inverted and released from the hand mold to obtain a vinyl chloride glove (Product 3 of the present invention).

(Prescription of vinyl chloride paste sol)

Example 4
Manufacture of vinyl chloride gloves (4) (electrostatic flocking of short fibers containing chitosan):
A ceramic hand mold was immersed in a vinyl chloride paste sol having the formulation shown in Table 1, pulled up at such a speed that the sol did not drip, and the vinyl chloride sol was attached to the surface of the hand mold. Next, the hand mold to which the sol was adhered was heated in a heating furnace at 200 to 230 ° C. for about 5 to 7 minutes to completely solidify the glove substrate.

  After cooling the solidified glove substrate, the hand mold was immersed in an acrylic adhesive solution for 1 second, and the hand mold was pulled up so that an appropriate amount of the adhesive was adhered to the surface. Next, while the adhesive is not dried, the chitosan-containing short fiber (clavion (length: 0.5 to 0.8 mm, thickness: 0.5 to 0.8 mm, 1.1 to 2.2 decitex (manufactured by Ohmi Kenshi Co., Ltd.) and subjected to electrostatic flocking treatment.The amount of short fibers to be applied was 7 g per pair. The adhesive was dried and baked after heating for 5 to 7 minutes at 200 to 230 ° C. After cooling, the glove was inverted and released from a hand mold to obtain a vinyl chloride glove (Product 4 of the present invention).

Example 5
Manufacture of vinyl chloride gloves (5) (comprising chitosan in short fiber adhesive):
A ceramic hand mold was immersed in a vinyl chloride paste sol having the formulation shown in Table 1, pulled up at such a speed that the sol did not drip, and the vinyl chloride sol was adhered to the hand mold surface. Next, the hand mold to which the sol was attached was heated in a heating furnace at 200 to 230 ° C. for about 5 to 7 minutes to completely solidify the glove base.

  After cooling the solidified glove substrate, the hand mold was immersed in an acrylic adhesive solution in which 2% by mass of chitosan FL-80 fine powder was dispersed, and the hand mold was pulled up so that an appropriate amount of the adhesive adhered to the surface. Was. Next, while rotating the hand mold before the adhesive is dried, a rayon / cotton mixed staple fiber (length 0.5 to 0.8 mm, thickness 1 .1 to 2.2 decitex), and subjected to electrostatic flocking. The coating amount of the short fibers was 8 g per twin. After the short fibers were adhered, heat treatment was performed again at 200 to 230 ° C. for 5 to 7 minutes, and the adhesive was dried and fired. After cooling, the glove was inverted and released from the hand mold to obtain a vinyl chloride glove (Product 5 of the present invention).

Example 6
Manufacture of vinyl chloride gloves (6) (chitosan treatment after short fiber implantation):
A ceramic hand mold was immersed in a vinyl chloride paste sol having the formulation shown in Table 1, pulled up at such a speed that the sol did not drip, and the vinyl chloride sol was adhered to the hand mold surface. Next, the hand mold to which the sol was attached was heated in a heating furnace at 200 to 230 ° C. for about 5 to 7 minutes to completely solidify the glove.

  After cooling the solidified glove substrate, it is immersed in an acrylic adhesive solution, the hand mold is pulled up so that the adhesive adheres to an appropriate amount on the surface, and the hand mold is rotated while the adhesive does not dry. Rayon / cotton short fibers (length: 0.5 to 0.8 mm, thickness: 1.1 to 2.2 decitex) from the blower outlet were applied using a flocking machine and subjected to electrostatic flocking. Subsequently, the adhesive was dried and fired in a heating furnace at 200 to 230 ° C. for 5 to 7 minutes.

  After the adhesive was baked, the hand mold was immersed in a chitosan dilute acid aqueous solution shown in Table 6 for 1 second so that the chitosan aqueous solution was contained in the inner surface of the glove and the short fibers adhered to the glove base. It was dried in a heating furnace at 100-120 ° C. for about 10 minutes. After cooling, the glove was inverted and released from the hand mold to obtain a vinyl chloride glove (Product 6 of the present invention).

(Prescription of chitosan dilute acid aqueous solution)

Example 7
Manufacture of NBR gloves (1) (treatment of inner surface of glove base with chitosan-containing liquid):
(A) Preparation of dispersion solution The solution A prepared according to the formulation in Table 7 and the solution B prepared according to the formulation in Table 8 are put into a ball mill at a mass ratio of 1: 1 and dispersed for about 24-48 hours to be dispersed. A John solution was prepared.

(Prescription of solution A)

(Prescription of solution B)

(A) Preparation of NBR latex liquid The NBR latex, the dispersant, the dispersion prepared in (a) and water were mixed at the ratio shown in Table 9 and sufficiently stirred to prepare an NBR latex liquid.

(Prescription of NBR latex solution)

(C) Preparation of Chitosan-Containing Liquid Chitosan was dispersed in an acrylic coating agent (containing silica having a particle size of 10 μm as lubricant fine particles) and diluted with water at a ratio shown in Table 10 to prepare a chitosan-containing liquid.

(Prescription of chitosan-containing liquid)

(D) Manufacture of NBR gloves
A hand mold made of ceramics was immersed in a methanol solution of 40% calcium nitrate and pulled up, and then dipped in the NBR latex solution prepared in the above (a) and pulled up to attach the latex liquid to the hand mold. Next, in order to remove excess calcium nitrate and excess components of rubber, extraction was performed with warm water at 30 to 70 ° C. for 5 to 10 minutes to form an NBR layer on the surface of the hand mold.

  The hand mold on which the NBR layer was formed was immersed in the chitosan-containing solution prepared in (c) for 1 second. After lifting the hand mold, drying and vulcanization were performed at about 100 ° C. to 130 ° C. for 30 minutes to 90 minutes, and after cooling, the mold was inverted and released to obtain an NBR glove (Product 7 of the present invention).

  The gloves of the present invention products 3 to 7 all exhibited excellent antibacterial and antifungal effects, similarly to the present invention products 1 and 2.

Therefore, the antibacterial and antifungal gloves of the present invention can be advantageously used as gloves for home use, surgery, industrial use, food use, fishery and other work.
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Claims (15)

  An antibacterial / antifungal glove, wherein the base is a glove made of rubber or a synthetic resin, the glove being treated with chitosan.   The antibacterial / antifungal glove according to claim 1, wherein the treatment with chitosan is performed by incorporating chitosan into the glove base.   The antibacterial and antifungal glove according to claim 1, wherein the treatment with chitosan is performed by applying a chitosan-containing liquid to the inner surface of the glove base.   4. The antibacterial and antifungal glove according to claim 3, wherein the chitosan-containing liquid is obtained by dispersing lubricant fine particles.   The antibacterial and antifungal glove according to claim 1, wherein the treatment with chitosan is performed by applying a short fiber containing chitosan to the inner surface of the glove base.   The antibacterial / antifungal glove according to claim 5, wherein the short fiber containing chitosan is a short fiber of chitosan viscose.   The antibacterial / antifungal glove according to claim 1, wherein the treatment with chitosan is performed by incorporating chitosan into an adhesive for adhering short fibers to the inner surface of the glove base.   A method for producing an antibacterial / antifungal glove, which comprises attaching a resin solution containing chitosan to a glove-type surface and solidifying the resin solution.   A method for producing an antibacterial / antifungal glove, comprising applying a chitosan-containing liquid to a glove base obtained by adhering a resin liquid to a glove mold surface and solidifying the resin liquid.   An antibacterial and antifungal glove characterized by applying a chitosan-containing liquid while the resin liquid is in a sol state or a semi-gel melted state after the resin liquid is adhered to the glove type surface, and then solidifying the resin liquid. Production method.   The method for producing an antibacterial / antifungal glove according to claim 9 or 10, wherein the chitosan-containing liquid is obtained by dispersing lubricant fine particles.   An antibacterial and antifungal glove, characterized in that a resin solution is applied to a glove mold surface, an adhesive is applied to a glove substrate obtained by solidifying the resin solution, and then a short fiber containing chitosan is applied. Manufacturing method.   An antibacterial and anti-bacterial method characterized by applying a chitosan-containing short fiber in a sol state or a semi-gel molten state after the resin liquid is adhered to the glove type surface, and then solidifying the resin liquid. Manufacturing method of mold gloves.   Production of an antibacterial / antifungal glove, characterized by applying a resin solution to a glove mold surface, solidifying the resin solution, applying an adhesive containing chitosan to a glove base, and then applying short fibers. Method.   15. The method for producing an antibacterial / antifungal glove according to claim 12, wherein the short fibers are subjected to electrostatic flocking.