JP2006002319A - Rubberized gloves and manufacturing method thereof - Google Patents

Abstract

An object of the present invention is to provide a palm with a flexible and excellent workability, a high cutting strength and a low cost.
A reinforcing layer (4) is laminated on the surface of a palm side base material (3) of a knitted glove (2). The reinforcing layer (4) includes a rubber layer (5) and a mesh sheet (6). The rubber layer (5) is laminated on the surface of the base material (3), and the mesh sheet (6) is disposed on the surface side of the rubber layer (5). The mesh of the mesh sheet (6) has such a size that the unvulcanized rubber can pass through by pressurization. Part of the rubber layer (5) oozes out to the surface through the mesh of the mesh sheet (6), whereby the mesh sheet (6) is embedded in the rubber layer (5).
[Selection] Figure 1

Description

  The present invention relates to a rubberized glove and a method for manufacturing the same, and more particularly to a rubberized glove that has a flexible palm and excellent workability, has high cutting strength, and can be implemented at low cost, and a method for manufacturing the same.

  In general, in metal processing work, waste collection work, etc., rubber gloves are often used in order to safely protect fingers when handling sharp blades, sharp metal, glass fragments, and the like. In this rubber-coated glove, a rubber layer is laminated on the surface of the knitted glove to increase the cut strength. However, it is difficult to obtain a sufficiently high cutting strength even if the rubber layer is formed thick by increasing the number of layers, and if this rubber layer is thickened, the rubber gloves are hardened and handling of the article becomes difficult. There is a risk that work efficiency may be reduced.

  In order to increase the above-mentioned cut strength, it is conceivable to manufacture the knitted gloves themselves using high-performance fibers such as aramid fibers. However, knitted gloves made of aramid fibers are expensive and have a problem that they are less stretchable and difficult to fit to the bare skin of the hand when worn, and are also likely to cause discoloration due to ultraviolet rays or deterioration due to bleach.

  Therefore, conventionally, in order to increase the above-mentioned cut strength, a rubber-coated glove in which a reinforcing layer composed of a rubber layer and a fiber sheet is laminated on the surface of the palm-side base material of the knitted glove has been proposed (for example, Patent Literature 1). That is, this conventional rubber-coated glove forms a reinforcing layer by sandwiching a fiber sheet made of aramid fibers between two or more rubber sheets made of unvulcanized rubber, and the reinforcing layer is formed into a knitted glove. The unvulcanized rubber is vulcanized by heat treatment by pressure bonding to the surface of the palm side base material.

JP-A-8-118548

  In said prior art, since a reinforcement layer contains an aramid fiber sheet, there exists an advantage which can obtain sufficiently high cut strength. However, since the above reinforcing layer sandwiches a plurality of rubber sheets in order to sandwich the fiber sheet, the thickness of the reinforcing layer is increased, and the palm of the rubberized glove is hardened, which may reduce workability. In addition, since the reinforcing layer is formed by previously sandwiching the fiber sheet between a plurality of rubber sheets, there is a problem that the manufacturing cost is high.

  The technical problem of the present invention is to provide a rubber-clad glove that can solve the above-mentioned problems, has a flexible palm portion, is excellent in workability, has high cutting strength, and can be implemented at low cost, and a method for manufacturing the same. is there.

In order to solve the above-described problems, the present invention is described as follows, for example, based on FIGS. 1 to 3 showing an embodiment of the present invention.
That is, the present invention 1 relates to a rubber-coated glove, which is a rubber-coated glove in which a reinforcing layer (4) is laminated on at least the surface of the base material side (3) of a knitted glove (2). ) Comprises a rubber layer (5) and a mesh sheet (6), the rubber layer (5) is laminated on the surface of the substrate (3), and the mesh sheet (6) is The rubber layer (5) is disposed on the surface side, and a part of the rubber layer (5) exudes to the surface of the mesh sheet (6) through the mesh of the mesh sheet (6). (5) is characterized in that the mesh sheet (6) is embedded.

  The present invention 2 also relates to a method for producing a rubber-coated glove, wherein an unvulcanized rubber sheet (8) and a mesh sheet (6) are provided on at least the surface of the base material (3) of the knitted glove (2). The rubber sheet (8) is partly disposed in order, and a part of the rubber sheet (8) is permeated through the mesh of the mesh sheet (6) to be exuded on the surface of the mesh sheet (6). The unvulcanized rubber of the rubber sheet (8) is vulcanized.

  The unvulcanized rubber penetrates the mesh of the mesh sheet by the above-mentioned pressurization and oozes and spreads on the surface of the mesh sheet, so that the mesh sheet is covered with the unvulcanized rubber and embedded. It will be in the state. The unvulcanized rubber is vulcanized by heating, and the knitted glove is reinforced by the rubber layer and the mesh sheet embedded in the rubber layer, so that high cutting strength is obtained.

  The mesh sheet may be a braided body or the like, but a woven fabric such as a plain weave is preferable because of high tensile strength. The constituent material of the mesh sheet may be made of a metal material such as steel, but is more preferably made of a flexible organic fiber. Specifically, natural fibers such as cotton and synthetic fibers such as nylon, polyester, acrylic, rayon, and polypropylene can be used alone or in combination of two or more, and they have high strength and high elasticity like aramid fibers. These fibers can be used alone or in combination with other fibers.

  As the above-mentioned mesh sheet, for example, a material with a clog like a base material of a knitted glove is not appropriate because unvulcanized rubber cannot pass therethrough. That is, the above-mentioned mesh-like material means a material having a mesh large enough to allow unvulcanized rubber to pass through under pressure, such as a gauze-like woven fabric. However, if this mesh is too wide, the reinforcing effect may be reduced. Specifically, although it differs depending on the constituent material of the mesh sheet, for example, in the case of a woven fabric plain woven with cotton yarn, a cotton yarn having a thickness of 10 to 50, particularly preferably 20 to 40, is used.

  When the thickness of the rubber layer is too thick, the glove becomes hard, so it varies depending on the material and dimensions of the mesh sheet, but is usually about 0.2 to 2.0 mm, more preferably 0.5 to 1. It is set within a range of about 0.0 mm. On the other hand, the thickness of the mesh sheet is sufficiently smaller than the thickness of the rubber layer so as to be embedded in the rubber layer. In addition, said mesh-like sheet should just be embed | buried in said rubber layer, and a part may be exposed to the surface, without being completely covered with a rubber layer.

As the rubber material constituting the rubber layer, natural rubber is mainly used. However, synthetic rubber such as acrylonitrile butadiene rubber (NBR) may be used. The rubber layer may be laminated on at least the surface on the palm side of the knitted glove, or may be laminated on part or all of the upper side surface.
As the constituent material of the above knitted gloves, natural fibers such as cotton and synthetic fibers such as nylon, polyester, acrylic, rayon, and polypropylene can be used alone or in combination of two or more.

  When the above reinforcing layer is laminated and pressed on the surface of the base material of the knitted glove in an unvulcanized state, a part of the unvulcanized rubber permeates into the fiber of the base material and heat vulcanizes it. The rubber layer is fixed to the substrate. However, in the present invention, the above-described reinforcing layer may be adhered and fixed to the surface of the base material of the knitted glove with an adhesive.

  In addition, since the mesh-like sheet improves the shape retention when it is previously dipped in a liquid paste and dried, it can be easily laminated with an unvulcanized rubber sheet, and can be easily laminated. It is more preferable because it is difficult to cause shape deformation during permeation of the vulcanized rubber.

  Since the present invention is configured and operates as described above, the following effects can be obtained.

(1) Since the knitted gloves are reinforced by the rubber layer and the mesh sheet embedded therein, a sufficiently high cutting strength can be obtained, and the fingers of the operator can be safely protected.

(2) In addition, since the mesh sheet is embedded in the rubber layer by allowing the unvulcanized rubber to permeate the mesh, the rubber sheet is different from the conventional technique in which the fiber sheet is sandwiched between a plurality of rubber sheets. Just a sheet. As a result, since the thickness of the rubber layer can be reduced and the palm portion can be maintained flexibly, it is possible to easily handle metals, wastes, etc., and to exhibit excellent workability.

(3) The manufacturing process is simple because only one rubber sheet is required and an unvulcanized rubber sheet and a mesh-like sheet are arranged in order on the surface of the base material of the knitted glove, pressurized, and heat vulcanized. And can be implemented inexpensively.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 show an embodiment of the present invention, FIG. 1 is a partially cutaway perspective view of a rubber-clad glove, FIG. 2 is a cutaway perspective view of a main part for explaining a lamination procedure of a reinforcing layer, and FIG. It is an expanded sectional view of the important section of rubber-clad gloves.

  As shown in FIG. 1, this rubber-coated glove (1) is formed by laminating a reinforcing layer (4) on the surface of the palm side substrate (3) of a knitted glove (2). The reinforcing layer (4) is composed of a rubber layer (5) and a mesh sheet (6), and the rubber layer (5) is laminated on the surface of the palm side substrate (3) to form a mesh sheet (6). Is embedded in the surface side of the rubber layer (5). That is, a part of the rubber layer (5) oozes out to the surface of the mesh sheet (6) through the mesh of the mesh sheet (6) and spreads on the surface to form one part of the mesh sheet (6). It is in the state which covered the part or all.

Next, a manufacturing procedure of the rubber-clad glove (1) will be described.
As shown in FIG. 2, a hand mold (7) is inserted into a knitted glove (2) manufactured in advance by a conventional method, and the knitted glove (2) is placed on the palm-side base material (3). The unvulcanized rubber sheet (8) and the mesh sheet (6) cut in accordance with the shape of the glove are sequentially stacked, pressurized and heated under conditions of a predetermined pressure and temperature.

The above-mentioned knitted glove (2) is made of, for example, cotton and nylon blended yarn, and has a good fit to the bare skin when worn, but other fibers frequently used in knitted gloves may be used.
For the rubber sheet (8), natural rubber having a thickness of about 0.5 to 1 mm is used, but synthetic rubber such as NBR may be used.
The mesh sheet (6) is composed of a gauze-like fiber sheet woven with 20th-thick cotton yarn. This mesh sheet (6) is preliminarily dipped in a liquid paste and then dried, and has excellent shape retention despite its thin thickness. However, the mesh sheet (6) only needs to have a mesh size that allows the unvulcanized rubber to permeate, and the mesh formation method, size, fiber type, thickness, etc. are the same as those in this embodiment. It is not limited. Further, the above gluing process may be omitted if there is no problem in handling the mesh sheet (6).

  Due to the pressurization, the unvulcanized rubber of the rubber sheet (8) has a part of the upper surface that permeates the mesh of the mesh sheet (6) and oozes out on the surface of the mesh sheet (6). spread. On the other hand, a part of the lower surface of the rubber sheet (8) penetrates into the fibers of the palm side base material (3). In this state, since the unvulcanized rubber is partially vulcanized, as shown in FIG. 3, the rubber layer (5) is firmly fixed to the surface of the palm portion side base material (3). The mesh sheet (6) is embedded in the surface side of (5).

  Thereafter, the knitted glove (2) is removed from the hand mold and attached to the three-dimensional mold, heated to a predetermined temperature to complete the vulcanization of the unvulcanized rubber, and then removed from the three-dimensional mold. Rubberized gloves (1) are obtained.

  The rubber-clad gloves described in the above embodiment are illustrated to embody the technical idea of the present invention, and various modifications can be made within the scope of the claims of the present invention. . For example, in the above embodiment, the reinforcing layer is formed only on the palm side, but the reinforcing layer may also be formed on the upper side. In the above-described embodiment, the reinforcing layer is pressure-bonded to the base material of the knitted glove, and then attached to the three-dimensional mold and heated and vulcanized. The filling and integration of the rubber sheet into the base material and the vulcanization of the unvulcanized rubber may be performed simultaneously. It is also possible to pressurize the reinforcing layer in advance and partially vulcanize it by heating, and attach the reinforcing layer to a knitted glove with an adhesive.

  INDUSTRIAL APPLICABILITY Since the palm portion is flexible and excellent in workability, and has high cutting strength and can be implemented at low cost, the present invention can be suitably used for rubber gloves for various operations.

It is a partially broken perspective view of a rubber-clad glove showing an embodiment of the present invention. It is a fracture | rupture perspective view of the principal part for demonstrating the lamination | stacking procedure of a reinforcement layer. It is an expanded sectional view of the important section of rubber-clad gloves.

Explanation of symbols

1 ... Rubberized gloves 2 ... Knitted gloves 3 ... Base material (palm side base material)
4 ... Reinforcing layer 5 ... Rubber layer 6 ... Mesh sheet 7 ... Hand mold 8 ... Rubber sheet

Claims (4)

A rubber-coated glove in which a reinforcing layer (4) is laminated on at least the surface of the base material side (3) of the knitted glove (2),
The reinforcing layer (4) includes a rubber layer (5) and a mesh sheet (6),
The rubber layer (5) is laminated on the surface of the base material (3),
The mesh sheet (6) is disposed on the surface side of the rubber layer (5),
A part of the rubber layer (5) exudes to the surface of the mesh sheet (6) through the mesh of the mesh sheet (6), whereby the mesh sheet (6) is added to the rubber layer (5). Rubberized gloves, characterized in that is embedded.   The rubber-coated glove according to claim 1, wherein the mesh of the mesh-like sheet (6) has a size that allows unvulcanized rubber to pass through under pressure. An unvulcanized rubber sheet (8) and a mesh sheet (6) are arranged in this order on the surface of at least the palm side substrate (3) of the knitted glove (2),
By pressing, a part of the rubber sheet (8) is permeated through the mesh of the mesh sheet (6) and oozed out on the surface of the mesh sheet (6).
A method for producing a rubber-coated glove characterized by vulcanizing the unvulcanized rubber of the rubber sheet (8) by heating. The method for producing a rubber-coated glove according to claim 3, wherein the mesh sheet (6) is previously dipped in a liquid paste and then dried.

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