JPH0346567B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to cut-resistant yarn suitable for knitting safety gloves and safety clothing that protect hands and bodies from sharp tools, metal pieces, glass pieces, etc. It comes out.

(Prior art) Japanese Utility Model Application Publication No. 59-178379 discloses that a strand of aramid fiber is wound around a core material made of a strand of aramid fiber and stainless steel wire, and nylon fiber is further wrapped in the opposite direction on top of the strand of aramid fiber. Disclosed is a cut-resistant yarn wound around the wafer.

(Problems to be Solved by the Invention) Conventional cut-resistant yarns use aramid (aromatic polyamide) fibers as a core material and are also wound around the core material. This aramid fiber is extremely strong and can increase the cut resistance of the yarn by using it, but it is expensive compared to synthetic fibers such as nylon, so conventional cut resistance using a large amount of aramid fiber The problem with yarn was that it was expensive to manufacture.

In addition, since the stainless steel wire and aramid fiber strands that make up the core material are bundled bare, the stainless steel wire is likely to wear out due to abrasive action between the stainless steel wires or between the stainless steel wire and the aramid fiber strands. As a result, safety gloves and clothing made from this thread have a short lifespan.

(Means for Solving the Problems) In view of the above-mentioned problems, an object of the present invention is to provide a cut-resistant yarn that has excellent cut resistance and durability even though the amount of aramid fiber used is small. That is.

The present invention has a structure in accordance with this object, including a core material made of aramid fiber strands and stainless steel wire, an inner sheathing of synthetic resin wound around this core material, and a wire wound in the opposite direction on top of this inner sheathing material. A cut-resistant yarn having a synthetic fiber outer covering wound around the core material, wherein a nylon thread is wound around each stainless steel wire constituting the core material, and nylon thread is used for the inner covering and the outer covering. The gist is:

(Function) The above structure increases the strength of the core material by reinforcing each stainless steel wire that makes up the core material with nylon threads, which eliminates the need to use expensive aramid fibers as a covering wrapped around the core material. However, the cutting resistance of the thread can be increased. In addition, the nylon thread wound around the stainless steel wire allows the stainless steel wire to
Alternatively, it prevents the abrasive action between the stainless steel wire and the aramid fibers and prevents wear of the stainless steel wire, thereby extending the life of the thread.

(Example) Examples of the present invention will be described in detail below based on the drawings.

FIG. 1 is a partially enlarged view of cut-resistant yarn showing one embodiment of the present invention, and FIG. 2 shows a safety glove knitted using this embodiment.

The safety gloves 10 are used when handling objects with sharp parts such as knives, metal pieces, glass, etc., and are used to prevent injury to the equipment. This safety glove 1
0 was manufactured using a well-known glove knitting machine using cut-resistant yarn, which will be described later, and its form is no different from that of ordinary gloves.

The cut-resistant thread 20 used in this safety glove is coated on a core material 30, an inner sheath 41 made of nylon thread wound around the core material 30, and on the inner sheath 41 opposite to this inner sheath 41. It consists of a nylon outer jacket 42 wound in a direction. By winding the inner sheath 41 and the outer sheath 42 in opposite directions, the tension of each sheath 41 and 42 is balanced, and the sheaths 41 and 42 are wound around the core material 30 at predetermined positions.

The core material 30 is made of three stainless steel wires 31, 3
It is made by bundling 2, 33 and one aramid fiber 34. Among the three stainless steel wires 31 to 33, the stainless steel wire 31 has, for example, a nylon thread 35 wound thereon in a right-handed manner, and the stainless steel wire 32 has a nylon thread 36 wound thereon in a left-handed manner. Further, a nylon thread 37 is wound to the right around the stainless steel wire 33, and a nylon thread 38 is further wound to the left on top of the nylon thread 37.

Each stainless steel wire 31~33 has a diameter of 0.04mm~
A material with a thickness in the range of 0.15 mm is suitable as the material for the core material 30. The diameter of stainless steel wires 31 to 33 is
If it is smaller than 0.04 mm, the strength will be weak and it will be expensive. If the diameter is larger than 0.15 mm, the strength will increase, but the flexibility of the thread will decrease, making it unsuitable as a material for safety gloves 10 or safety clothing. The nylon threads 35 to 38 and 41 and 42 are preferably 50 to 120 deniers.

The aramid fiber 34 is most preferably Kevlar fiber spun yarn 2.0 twin yarn (trade name of Du Pont Company, USA);
This aramid fiber has a thickness of approximately 531.6 denier. However, the aramid fiber 34 may be a single yarn of Kevlar fiber spun yarn 2.0 having a thickness of approximately 265.8 denier, or a single yarn of Kevlar fiber spun yarn 3.0 having a thickness of approximately 354.2 denier, approximately 266 denier. Kevlar spun fiber yarn with 4.0 twin yarn, and approx.
Kevlar fiber spun yarn 4.0 with a thickness of 133 denier
Good results can be obtained even with single yarn.

The structure of the core material 30 described above provides cut resistance and flexibility to the threads, and in particular, since the stainless steel wires 31 to 33 are reinforced by the nylon threads 35 to 38, it is not necessary to use expensive aramid fibers for the core material 30. Shows high cutting resistance even without winding. Also, stainless steel wires 31 to 33 or stainless steel wires 31 to 3
By preventing the abrasive action between the stainless steel wires 31 to 33 and the aramid fibers, wear of the stainless steel wires 31 to 33 is prevented, thereby extending the life of the stainless steel wires 31 to 33.

Furthermore, the outer covering 42 made of nylon gives the yarn 20 a smooth feel and has excellent flexibility, so that the safety glove 10 knitted with this yarn 20 fits well in the hand and is easy to work with. Furthermore, since nylon thread is easy to dye, products with rich colors can be obtained.

Next, FIG. 3 shows another embodiment of the present invention.

The cut-resistant yarn 20' and the first
The cut-resistant yarn 20 shown in the figure is different in that aramid fibers 34 and stainless steel wire 31 are bundled together, and a nylon yarn 35 is wound around the bundle. Since it has the same structure as other cut-resistant yarns 20, the same components are given the same reference numerals and the description thereof will be omitted.

In the above-described embodiment, one aramid fiber and three stainless steel wires are used, but by appropriately increasing the number of these aramid fibers and stainless steel wires, yarns with a wide range of counts can be made.

(Effects of the Invention) According to the present invention, a nylon thread is wound around each of the stainless steel wires constituting the core material to reinforce the stainless steel wires, and an inexpensive nylon thread is used as a covering material to be wound around the core material. Since I used thread,
Cut-resistant yarn with high cut resistance, flexibility, and durability can be produced at low cost.

In particular, by using the cut-resistant yarn according to the present invention, safety gloves and safety clothing that are rich in color and have excellent usability can be manufactured at low cost.

[Brief explanation of drawings]

Fig. 1 is a partially enlarged view of a cut-resistant thread according to an embodiment of the present invention, Fig. 2 is a front view of a safety glove using this embodiment, and Fig. 3 is a diagram showing another embodiment of the present invention. It is a partially enlarged view. 20, 20'... cut-resistant yarn, 30... core material,
31-33...Stainless steel wire, 35-38...
...Nylon thread, 41...Inner coating, 42...Outer coating.

Claims (1)

[Scope of Claims] 1. A core material consisting of aramid fiber strands and stainless steel wire, an inner sheathing of synthetic fibers wound around the core material, and windings in opposite directions on top of the inner sheathing material. A cut-resistant yarn having an outer covering made of synthetic fibers, characterized in that nylon thread is wound around each stainless steel wire constituting the core material, and nylon thread is used for the inner covering and the outer covering. cut-resistant yarn.