JP2009178911A - Rubber-coated cloth - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rubber-coated cloth that is highly effective in deodorization, heating and sterilization, and excellent in elasticity, strength and flexibility. <P>SOLUTION: The rubber-coated cloth comprises a rolled sheet 1 formed by adding black silica powders to a rubber material and kneading, and a laminate 2 made of a cloth or sheet and integrated with the rolled sheet 1 by vulcanizing adhesion. The rolled sheet 1 has 5-100 pts.wt. of the black silica added to 100 pts.wt. of the rubber material. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a rubberized cloth, a bed or a futon sheet using the same, and a shoe insole.

  Rubberized fabrics are highly waterproof, flexible, and gripper, and are durable and resistant to dirt, so they can be used in everyday items such as waterproof sheets, anti-slip sheets, cushioning materials, clothing materials, bedding, and interior products. Has also been used.

Some rubberized fabrics have a function such as solvent resistance enhanced by an additive such as fluorine rubber (see, for example, Patent Document 1).
JP 2006-225794 A (paragraph 0006)

  However, more comfortableness is being demanded for daily goods and sports equipment. In particular, in recent years, attempts have been made to add ore such as tourmaline and germanium in order to add effects such as far-infrared rays, but there is a problem that the amount of far-infrared rays generated is low and the effect is low. Moreover, when trying to obtain effects in all of deodorization, sterilization, and thermal effects by far infrared rays, there is a problem that a large amount of various kinds of ores need to be mixed. It was difficult to increase the content even if these ores were added directly to fibers and the like. Further, even if these ores are added to the rubberized cloth, there are problems that it is difficult to exert the effect while maintaining elasticity and the durability is deteriorated.

  Accordingly, an object of the present invention is to provide a rubberized cloth having a high deodorizing effect, thermal effect and sterilizing effect.

  In order to achieve the above object, the present invention is configured as follows.

  A first aspect of the present invention is a rubber characterized in that a laminated material comprising a cloth or a sheet is vulcanized and integrated with a rolled sheet obtained by adding black silica powder to a rubber dough and kneaded. It provides a pulling cloth.

  In the present application, the fabric includes, for example, a woven fabric and a non-woven fabric, and the sheet includes a thin plate as well as a thick plate-like material, for example, a fiber sheet, a resin sheet, a metal plate, and a wire mesh. . The woven fabric includes woven fabrics of synthetic fibers such as nylon and acrylic, and woven fabrics of natural fibers such as cotton and silk. The fiber sheets include synthetic fiber sheets such as polyester and rayon, natural fiber sheets, and glass fibers. Sheets are included, and resin sheets include synthetic resin sheets such as polyurethane and polyethylene, and natural resin sheets. Plate thickness of polycarbonate, aromatic polyamide including Kevlar (registered trademark), engineer plastic such as acetal resin including delrin (registered trademark), or resin such as high strength urethane resin and polyethylene terephthalate There may be a sheet with. In the present application, the natural fiber sheet includes a cork sheet. Examples of the metal plate and wire mesh include stainless steel and iron.

  Examples of rubber fabrics include natural rubber, styrene-butadiene rubber, nitrile rubber, butadiene rubber, isoprene rubber, ethylene-propylene copolymer, ethylene-propylene-nonconjugated diene terpolymer, chloroprene rubber, butyl rubber, urethane rubber, silicone rubber, chlorine. And polyethylene rubber, fluorine rubber, acrylic rubber, epichlorohydrin rubber, and ethylene-acrylic rubber.

  Black silica is a natural ore called graphite silica that has a high far-infrared effect, emits 90% or more of far-infrared radiation at room temperature, and has 10 times the deodorizing, antibacterial, fungicidal, insecticidal, and dehumidifying effects of charcoal. Has been.

  It is preferable that the vulcanization adhesion is formed by vulcanization adhesion of the laminated material to the front surface and / or the back surface of the rolled sheet. Alternatively, the vulcanization adhesion may be obtained by vulcanization adhesion by sandwiching the pressure laminated material between the rolled sheets. Moreover, it is preferable that the said vulcanization adhesion is formed by laminating the rolled sheet and the laminated material in a plurality of layers and vulcanizing and adhering.

  It is preferable that the rolled sheet has 5 to 100 parts by weight of the black silica powder added to 100 parts by weight of the rubber dough. Further, the rolled sheet is more preferably added in an amount of 50 parts by weight or more and 100 parts by weight or less of the black silica with respect to 100 parts by weight of the rubber fabric. Since black silica can be contained at a high concentration, it is more excellent in terms of a deodorizing effect, a thermal effect and a sterilizing effect.

  The thickness is preferably 0.1 mm or more and 2.0 mm or less. Excellent flexibility, light and easy to bend. The black silica powder preferably has an average particle size of 100 μm or less. Since the particles are about the size of wheat flour or less, they are easy to mix uniformly into the rubber dough, and the particles do not spill on the surface, feel good and have excellent comfort.

  It is preferable that the rolled sheet is further added with a foaming agent for rubber and becomes a sponge-like foamed sheet by the vulcanization adhesion. Excellent water absorption, shock absorption and soundproofing.

  The second aspect of the present invention is characterized by having a rubberized cloth in which a laminated material composed of a cloth or a sheet is vulcanized and bonded on a rolled sheet obtained by kneading black silica powder into a rubber cloth. To provide sheets.

  The third aspect of the present invention is characterized by having a rubberized cloth in which a laminated material composed of a cloth or a sheet is vulcanized and integrated on a rolled sheet obtained by kneading black silica powder into a rubber cloth. To provide insoles.

  Since the rubberized cloth of the present invention is as described above, the deodorizing effect, the thermal effect, and the sterilizing effect are high. Moreover, since it is integrated by vulcanization adhesion, the thickness can be reduced, the adhesive strength is high, and the durability is excellent.

  Hereinafter, the configuration and operation of a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

(Constitution)
FIG. 1 is a schematic cross-sectional view of a rubberized cloth according to Embodiment 1 of the present invention. Since it is a long object, the left and right parts that are repeated are omitted. The same applies to the following FIGS. The rubberized cloth 3 of this embodiment is composed of a rolled sheet 1 and a laminated material 2 stacked thereon. The rolled sheet 1 and the laminated material 2 are integrated by vulcanization adhesion.

  The rubberized cloth according to Example 1 of the present invention is obtained by covering a degreased rolled sheet 1 with a laminated material 2 coated with a baking adhesive and drying it, and superimposing the rolled sheet 1 on a calender roll. And the laminated material 2 are pressure-bonded, oven-cured in a heating furnace, and the rolled sheet 1 and the laminated material 2 are obtained by vulcanization adhesion (baking adhesion) in which the rubber in the rolled sheet 1 is vulcanized and molded integrally. It is the structure laminated | stacked by 1 time of adhesion | attachment. In this example, the molding conditions were a temperature of 140 ° C. and a molding time of 20 minutes to 1 hour. In this example, a phenolic resin adhesive was used as the adhesive for baking. In oven-cure, a rubberized cloth of a long object having a width of 1200 mm and a length of 100 m or more is also possible.

  In addition to oven-curing, vulcanized adhesion using a mold may be used. For example, on the degreased rolled sheet 1, the laminated material 2 coated with a baking adhesive and dried is coated and overlaid, placed in a mold and heated at 160 ° C. for 10 minutes. It is also possible to use vulcanization adhesion in which the rubber is vulcanized and molded integrally.

  The rolled sheet 1 is obtained by making black silica into a fine powder, kneading it into an unvulcanized rubber fabric, and rolling it into a thin sheet. In this embodiment, the amount of black silica is 50 parts by weight with respect to 100 parts by weight of the rubber fabric, but is not limited thereto. Moreover, in the present Example, although the thickness of the rolled sheet 1 is 0.2 mm, it is not limited to this. When the thickness is in the range of 0.1 mm to 2.0 mm, the rubberized cloth 3 is excellent in flexibility, light, and easier to bend. In this example, the black silica is powdered so as to have an average particle diameter of 75 μm. If the average particle diameter of the black silica contained in the rolled sheet 1 is 100 μm or less, it is easy to mix uniformly into the rubber fabric, the particles do not spill on the surface of the rolled sheet 1, and the rolled sheet 1 is on the surface side. Also feels good and has excellent comfort. In this embodiment, chloroprene rubber is used as the rubber fabric, but other synthetic rubber and natural rubber may be used.

  The rolled sheet 1 may be a sheet having a sponge-like rubber portion as well as a sheet having a solid rubber portion. When the black silica is added to the rubber fabric, by adding a foaming agent for rubber, foaming is caused by heat at the time of vulcanization, the rubber part becomes sponge-like, and at the same time, the rubber part and the laminate 2 are bonded. As the foaming agent for rubber, for example, sodium hydrogen carbonate or the like can be used.

  In the present embodiment, the laminated material 2 uses a nylon cloth, but may be a woven cloth of natural fibers such as cotton or silk or other synthetic fibers, or may be a non-woven cloth, or a fiber sheet, a resin sheet, or a metal plate. Further, a sheet shape such as a wire mesh may be used.

  FIG. 2 is a schematic cross-sectional view of a rubberized cloth according to Modification 1 of Embodiment 1 of the present invention. FIG. 3 is a schematic cross-sectional view of a rubberized cloth according to Modification 2 of Embodiment 1 of the present invention. FIG. 4 is a schematic cross-sectional view of a rubberized cloth according to Modification 3 of Embodiment 1 of the present invention. In the present embodiment shown in FIG. 1, the laminate 2 is vulcanized and bonded to the front surface side of the rolled sheet 1, but both the front and back surfaces of the rolled sheet 1 are used as in Modified Example 1 shown in FIG. 2. The laminated material 2 may be superposed on each other and bonded by vulcanization adhesion, or the laminated material 2 may be sandwiched between two rolled sheets 1 and bonded by vulcanization adhesion, as in Modification 2 shown in FIG. Alternatively, as in Modification 3 shown in FIG. 4, the laminated material 2 and the rolled sheet 1 may be laminated in multiple layers and joined together by vulcanization adhesion. When using the some laminated material 2, the material may differ. For example, in the first modification, the laminated material 2 on the front surface may be towel cloth, and the laminated material 2 on the back surface may be urethane foam.

(Function)
In the present embodiment, black silica has both heat generation and heat retention effects on human bodies and animals by far infrared rays generated in large amounts, deodorization and sterilization effects by negative ions. Black silica has both deodorizing and sterilizing effects, and has a high far-infrared effect even in small amounts compared to other ores. In this example, since it is finely powdered and kneaded into the rubber dough, a large amount of black silica can be uniformly kneaded, so that a high effect can be exerted, and deodorizing, far-infrared radiation and removal by the location of the sheet can be achieved. There is little unevenness of effect of bacteria. In this embodiment, 50 parts by weight of black silica is contained with respect to 100 parts by weight of the rubber fabric, so that there are extremely high deodorizing, far-infrared and sterilizing effects.

Since the rolled sheet 1 and the laminated material 2 are bonded by vulcanization bonding, the rolled sheet 1 has an adhesive strength of 20 kgf · cm ⁻² or more, and is 10 times or more that of an ordinary rubber plate bonded to a nylon cloth with an adhesive. Has an adhesive effect. Therefore, since the rolled sheet 1 and the laminated material 2 are hard to peel off, it is durable. Moreover, since it is an integral molding, it does not swell and is flat, so it does not feel uncomfortable. Furthermore, it is a vulcanization adhesion, and it is not necessary to create a rubber plate after vulcanization, and it is possible to reduce the manufacturing cost and the manufacturing process because molding and adhesion can be performed at one time.

  The rubberized cloth 3 of the present embodiment is excellent in elasticity and stretchability, so that it can be bent and has high strength. The rubber hardness is preferably 45 ° to 75 ° at room temperature. Since the thickness of the rubberized cloth can be reduced, it can have flexibility even if the hardness is large. In this embodiment, the hardness is 60 ° at room temperature.

(effect)
According to the present Example, the deodorizing effect, the thermal effect, and the disinfection effect are high. Moreover, it is a rubberized cloth having a strong adhesive force on the adhesive surface, excellent strength, and excellent flexibility. Moreover, it can be made thin though it is a multilayer. Therefore, it is extremely excellent in comfort due to the synergistic effect of deodorizing / heating / disinfecting effect and excellent strength, flexibility and thinness. The effect is maintained even after washing and repeated use, so it is clean and suitable for various daily necessities. Since the rubberized cloth of the present embodiment can be easily formed by die cutting or the like, for example, sheets, insoles, sports equipment such as winter sports, windproof equipment, medical supplies, care supplies, food supplies, bathing It can be used as household goods such as mats, health mats, and coasters.

  In this example, the amount of black silica added in Example 1 is 5 parts by weight with respect to 100 parts by weight of the rubber fabric. Other configurations and operational effects are the same as those of the first embodiment.

  In this example, the amount of black silica added in Example 1 is 30 parts by weight with respect to 100 parts by weight of the rubber fabric. Other configurations and operational effects are the same as those of the first embodiment.

  In this example, the amount of black silica added in Example 1 is 100 parts by weight with respect to 100 parts by weight of the rubber fabric. Other configurations and operational effects are the same as those of the first embodiment.

  In this example, the amount of black silica added in Example 1 is 120 parts by weight with respect to 100 parts by weight of the rubber fabric. Other configurations and operational effects are the same as those of the first embodiment.

(Comparative example)
In Comparative Example 1, the amount of black silica added in Example 1 was set to zero.

(Qualitative evaluation)
About Examples 1-5 and Comparative Example 1, qualitative evaluation was carried out about the deodorization, disinfection, the thermal effect by far infrared rays, and elasticity. The results are shown in Table 1. In the table, ◎ means extremely good, ○: excellent, Δ: good, ×: poor. In addition, the unit of the addition amount of black silica is represented by phr (Parts per hundred parts of resin), that is, parts by weight with respect to 100 parts by weight of the rubber cloth.

  The present embodiment is a sheet 4 for a futon 6 in which the rubberized cloth of the first embodiment is formed into a sheet. The surface side with the laminated material 2 is a surface in contact with the human body 8. FIG. 5 is an explanatory diagram of the use of the sheet according to the sixth embodiment of the present invention. FIG. 5 is a diagram in which a sheet 4 is laid on a futon 6 and a human body 8 lies on a pillow 7 or the like. As the rubber fabric, natural rubber or silicon rubber may be used instead of chloroprene rubber. According to the present Example, the deodorizing effect, the thermal effect, and the disinfection effect are high. In this embodiment, the excreted dirt and liquid can be prevented from diffusing into the futon and other objects due to the waterproofness of the rubber, and the body temperature is prevented from being lowered by the thermal effect. It is possible to maintain a comfortable environment even on the surface, and has a strong adhesive force on the bonding surface, excellent strength, and excellent flexibility, and can be washed and used repeatedly. For example, it is suitable as a futon sheet or a bed sheet for nursing a sick person or an elderly person.

  The present embodiment is a shoe insole 5 in which the rubberized cloth of the first embodiment is cut into a shoe shape. FIG. 6 is an explanatory view showing a configuration of a shoe insole according to Embodiment 7 of the present invention. FIG. 7 is an explanatory diagram of the use of a shoe insole according to Embodiment 7 of the present invention. In FIG. 6, only the right side of a pair of left and right symmetrical insoles is shown, (a) is a top view, and (b) is a cross-sectional view. As shown in FIG. 7, the upper surface refers to a surface on which a sole touches when an insole is inserted into the shoe 9 and a person wears the shoe 9.

  According to the present Example, the deodorizing effect, the thermal effect, and the disinfection effect are high. In a durability test of 2 months or more, a thermal effect and a deodorizing effect in the shoes were recognized. Moreover, since it has strong adhesive force on the bonding surface, excellent strength, and excellent flexibility, it has high durability and can be fitted to the movement of the foot.

  As mentioned above, although the suitable Example of this invention was described, this invention is not limited to this embodiment, A various deformation | transformation implementation is possible in the range which does not deviate from the meaning of the invention. It is obvious for those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea described in the claims. It is understood that it belongs to.

  For example, in the above-described embodiment, a shoe insole has been obtained by bonding a cotton cloth as a laminated material to the rolled sheet surface, but further having one or more metal plates bonded to the rolled sheet back surface as a laminated material. May be. As a result, a step-out prevention effect is further exhibited.

It is a section schematic diagram of the rubberized cloth concerning Example 1 of the present invention. It is the cross-sectional schematic of the rubberized cloth which concerns on the modification 1 of Example 1 of this invention. It is the cross-sectional schematic of the rubberized cloth which concerns on the modification 2 of Example 1 of this invention. It is a cross-sectional schematic of the rubberized cloth which concerns on the modification 3 of Example 1 of this invention. It is use explanatory drawing of the sheet which concerns on Example 6 of this invention. It is explanatory drawing which shows the structure of the shoe insole which concerns on Example 7 of this invention. It is use explanatory drawing of the shoe insole which concerns on Example 7 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rolled sheet 2 Laminated material 3 Rubberized cloth 4 Sheet 5 Insole 6 Futon 7 Pillow 8 Human body 9 Shoes

Claims (10)

A rubberized cloth comprising a rolled sheet obtained by adding black silica powder to a rubber dough and kneaded, and a laminated material comprising a cloth or a sheet is vulcanized and integrated. The rubberized cloth according to claim 1, wherein the vulcanization adhesion is obtained by vulcanization adhesion of the laminated material to the front surface and / or the back surface of the rolled sheet. The rubberized cloth according to claim 1, wherein the vulcanization adhesion is obtained by vulcanizing and bonding the pressure-laminated material between the rolled sheets. The rubberized cloth according to claim 1, wherein the vulcanization adhesion is formed by laminating the rolled sheet and the laminated material in a plurality of layers and vulcanizing adhesion. The rubber according to any one of claims 1 to 4, wherein the rolled sheet has 5 to 100 parts by weight of the black silica powder added to 100 parts by weight of the rubber dough. Pulling cloth. The rubberized cloth according to any one of claims 1 to 5, wherein the thickness is 0.1 mm or more and 2.0 mm or less. The rubberized cloth according to any one of claims 1 to 6, wherein the black silica powder has an average particle diameter of 100 µm or less. The rubberized cloth according to any one of claims 1 to 7, wherein the rolled sheet is further added with a foaming agent for rubber and becomes a sponge-like foamed sheet by the vulcanization adhesion. A sheet comprising a rubberized cloth in which a laminated material composed of a cloth or a sheet is vulcanized and bonded on a rolled sheet obtained by kneading black silica powder in a rubber cloth. A shoe insole comprising a rubberized cloth obtained by vulcanizing and bonding a laminated material made of a cloth or a sheet on a rolled sheet obtained by kneading black silica powder in a rubber cloth.

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