METHOD FOR PREPARING TUNGSTEN WIRE TWIST-WRAPPED ANTI-CUT YARN AND METHOD FOR MAKING TEXTILE USING SAME

Abstract

 Disclosed is a method of preparing tungsten-based twisted and wrapped cut-resistant yarn, which comprises two steps: preparation of tungsten-based twisted yarn and preparation of tungsten-based twisted and wrapped cut-resistant yarn. Also disclosed is a method of producing a textile from the tungsten-based twisted and wrapped cut-resistant yarn, wherein by a knitting process with double yarn feeders U2, a textile is produced from spandex stretch yarn and the tungsten-based twisted and wrapped cut-resistant yarn. The present invention is advantageous in that: because China is a major producer of tungsten filaments and the reserves account for 75% of the world's total reserves, the present invention, using the tungsten filament as the raw material, has a broad variety of raw material sources and low costs. Moreover, the produced textiles are light, thin, and soft; and have high cut resistance, chemical stability, bending resistance, and deformation resistance during washing, and excellent electrical conductivity.

Description

Technical Field

[0001] The present invention relates to the field of yarns, and in particular, to a method of preparing tungsten-based twisted and wrapped cut-resistant yarn, and a method of producing a textile using same.

Background

[0002] Cut-resistant gloves are functional gloves. To achieve cut resistance, the thickness of current cut-resistant gloves is usually increased. The increase in thickness enhances the cut resistance of the gloves, but brings an uncomfortable feeling to a user. The gloves are stiff, thick and heavy, and do not bend easily, increasing the burden on an operator.

Summary of the Invention

[0003] To solve the foregoing technical problem, the present invention provides a method of preparing tungsten-based twisted and wrapped cut-resistant yarn, and a method of producing a textile using same.

[0004] The present invention adopts the following technical solution:
A method of preparing tungsten-based twisted and wrapped cut-resistant yarn includes the following operation steps:

a. preparation of tungsten-based twisted yarn: twisting together and intertwining auxiliary yarn I and a tungsten filament at the twisting degree of 400 to 700 twists/meter, to prepare the tungsten-based twisted yarn; and

b. preparation of tungsten-based twisted and wrapped cut-resistant yarn: wrapping a high-molecular-weight polyethylene fiber around the tungsten-based twisted yarn obtained in step a, at the twisting degree of 120 to 280 twists/meter, to prepare the tungsten-based twisted and wrapped cut-resistant yarn.

[0005] Further, in the tungsten-based twisted yarn in step a, the tungsten filament accounts for 35% to 75%, and the auxiliary yarn I accounts for 25% to 65%.

[0006] Further, the auxiliary yarn I in step a is made from one of nylon, polyester, cotton, bamboo fiber, and tencel; and has a linear density of 40D to 140D.

[0007] Further, the linear density of the nylon is preferably 40D, 50D, 70D, 100D or 140D.

[0008] Further, one or more of tungsten filaments with diameters of 0.01 mm, 0.015 mm, 0.02 mm, 0.025 mm, and 0.03 mm are selected as the tungsten filament in step a.

[0009] Further, in the tungsten-based twisted and wrapped cut-resistant yarn in step b, the tungsten-based twisted yarn accounts for 35% to 65%, and the polyethylene fiber accounts for 35% to 65%.

[0010] Further, the polyethylene fiber in step b has a molecular weight of 10W to 500W and a linear density of 50D to 400D.

[0011] Further, the linear density of the polyethylene fiber is preferably 50D, 100D, 150D, 200D, 300D, or 400D.

[0012] A method of producing a textile from tungsten-based twisted and wrapped cut-resistant yarn includes: by a knitting process with double yarn feeders U2, producing a textile from spandex stretch yarn and the tungsten-based twisted and wrapped cut-resistant yarn, wherein the tungsten-based twisted and wrapped cut-resistant yarn accounts for 60% to 80%, and the spandex stretch yarn accounts for 20% to 40%.

[0013] Further, the spandex stretch yarn is made from nylon-wrapped spandex, polyester-wrapped spandex, or polyethylene-fiber-wrapped spandex; and is made by twisting together a spandex filament with the specification of 20D to 100D and auxiliary yarn II with the specification of 50D to 200D at the twisting degree of 180 to 580 twists/meter, wherein the auxiliary yarn II is made from nylon, polyester or polyethylene; and the tension ratio of the spandex stretch yarn ranges from 1.5 to 2.4.

[0014] The present invention achieves the following advantageous effects: 1. A tungsten filament with rigidity of 9, ranking only second to diamond, is used as the raw material. Therefore, textiles produced with this material are highly rigid, thin and light. Moreover, China is a major producer of tungsten filaments, and the reserves account for 75% of the world's total reserves. Therefore, the present invention has advantages of a broad variety of raw material sources and low costs. 2. The produced textiles are light, thin, and soft; and have high cut resistance, chemical stability, bending resistance, and deformation resistance during washing, and excellent electrical conductivity. Further, the textiles can reach a cut resistance grade of A6 or higher in the ASTM standard; an ISO grade of F or higher in the European standard; and a wear resistance grade of 4, cut resistance grade of 5, tear resistance grade of 4, and puncture resistance grade of 4 in the European Union (EN) 388 standard.

Brief Description of the Drawings

[0015] 

FIG. 1 is a schematic structural diagram of tungsten-based twisted yarn in the present invention (using one strand of auxiliary yarn I and one tungsten filament);

FIG. 2 is a schematic structural diagram of tungsten-based twisted yarn in the present invention (using one strand of auxiliary yarn I and two or more tungsten filaments);

FIG. 3 is a schematic structural diagram of tungsten-based twisted and wrapped cut-resistant yarn in the present invention (using one strand of auxiliary yarn I, one tungsten filament, and one strand of polyethylene fiber);

FIG. 4 is a schematic structural diagram of tungsten-based twisted and wrapped cut-resistant yarn in the present invention (using one strand of auxiliary yarn I, two or more tungsten filaments, and one strand of polyethylene fiber); and

FIG. 5 is a schematic structural diagram of spandex stretch yarn in the present invention.

Meanings of numerals in the drawings:

[0016] 1. Auxiliary yarn I, 2. Tungsten filament, 3. Polyethylene fiber, 4. Spandex filament, and 5. Auxiliary yarn II

Detailed Description

[0017] In order to further understand the present invention, the present invention is further described in detail below with reference to examples and the accompanying drawings. The examples are only intended to explain the present invention, and not to limit the protection scope of the present invention.

[0018] A method of preparing tungsten-based twisted and wrapped cut-resistant yarn includes the following operation steps:

a. Preparation of tungsten-based twisted yarn: As shown in FIG. 1 and FIG. 2, auxiliary yarn I 1 and a tungsten filament 2 are twisted together and intertwined at the twisting degree of 400 to 700 twists/meter, to prepare the tungsten-based twisted yarn. The tungsten filament accounts for 35% to 75%, and the auxiliary yarn I 1 accounts for 25% to 65%. The auxiliary yarn I 1 is made from one of nylon, polyester, cotton, bamboo fiber, and tencel; and has a linear density of 40D to 140D. The tungsten filament 2 is selected to be one tungsten filament having a diameter of 0.01 mm, 0.015 mm, 0.02 mm, 0.025 mm, or 0.03 mm.

b. Preparation of tungsten-based twisted and wrapped cut-resistant yarn: As shown in FIG. 3 and FIG. 4, a high-molecular-weight polyethylene fiber 3 is wrapped around the tungsten-based twisted yarn obtained in step a, at the twisting degree of 120 to 280 twists/meter, to prepare the tungsten-based twisted and wrapped cut-resistant yarn. In the tungsten-based twisted and wrapped cut-resistant yarn, the tungsten-based twisted yarn accounts for 35% to 65%, and the polyethylene fiber 3 accounts for 35% to 65%. The polyethylene fiber has a molecular weight of 10W to 500W and a linear density of 50D to 400D. The linear density of the polyethylene fiber is preferably 50D, 100D, 150D, 200D, 300D, or 400D.

[0019] Afterwards, a method of producing a textile using the tungsten-based twisted and wrapped cut-resistant yarn as described above is as follows: By a knitting process with double yarn feeders U2, a textile is produced from spandex stretch yarn and the tungsten-based twisted and wrapped cut-resistant yarn. The tungsten-based twisted and wrapped cut-resistant yarn accounts for 60% to 80%, and the spandex stretch yarn accounts for 20% to 40%. The spandex stretch yarn is made from nylon-wrapped spandex, polyester-wrapped spandex, or polyethylene-fiber-wrapped spandex. As shown in FIG. 5, the spandex stretch yarn is made by twisting together a spandex filament 4 with the specification of 20D to 100D and auxiliary yarn II 5 with the specification of 50D to 200D at the twisting degree of 180 to 580 twists/meter. The auxiliary yarn II is made from nylon, polyester or polyethylene; and the tension ratio of the spandex stretch yarn ranges from 1.5 to 2.4.

[0020] Data and detection results, regarding textiles produced by the method of preparing tungsten-based twisted and wrapped cut-resistant yarn and by the method of producing a textile using the yarn, in five comparative examples and eleven examples are shown below:

Sample No.	Diameter of the tungsten filament (mm)	Fineness of the auxiliary yarn I (D)	Fineness of the polyethylene fiber (D)	Fineness of the spandex filament (D)	Fineness of the auxiliary yarn II (D)	Weight (g/piece)	Cut resistance (ASTM)
comparative example 1	0.006	70	50	20	100	13.5	A4
comparative example 2	0.01	30	100	30	200	14.5	A4
comparative example 3	0.015	70	100	140	100	15	A4
comparative example 4	0.015	100	150	40	250	15.5	A5
comparative example 5	0.015	100	200	70	250	16	A5
Example 1	0.02	50	100	20	70	16.8	A6
Example 2	0.02	70	150	40	100	17	A6
Example 3	0.02	100	200	30	70	17.8	A7
Example 4	0.02	70	200	20	140	18.8	A7
Example 5	0.025	70	150	30	100	18	A6
Example 6	0.025	100	200	40	70	19	A6
Example 7	0.025	140	200	70	100	19	A7
Example 8	0.03	140	200	40	140	19	A6
Example 9	0.03	70	200	40	70	19.2	A6
Example 10	0.03	100	300	70	140	20	A7
Example 11	0.03	100	300	100	100	20	A8

Note: The auxiliary yarn I in the comparative examples 1 to 3 and the examples 1 to 4 is made from nylon; the auxiliary yarn I in the comparative examples 4 and 5 and the examples 5 to 8 is made from polyester; the auxiliary yarn I in the examples 9 to 11 is made from cotton; the auxiliary yarn II in the comparative examples 1 to 3 and the examples 1 to 4 is made from nylon; the auxiliary yarn II in the comparative examples 4 and 5 and the examples 5 to 8 is made from polyester; and the auxiliary yarn II in the examples 9 to 11 is made from polyethylene.

[0021] It can be seen from the above examples and comparative examples that, the textiles produced within the data ranges of the present invention can all reach a cut resistance grade of A6 or higher in the ASTM standard.

Claims

1. A method of preparing tungsten-based twisted and wrapped cut-resistant yarn, comprising the following operation steps:

a. preparation of tungsten-based twisted yarn: twisting together and intertwining auxiliary yarn I and a tungsten filament at the twisting degree of 400 to 700 twists/meter, to prepare the tungsten-based twisted yarn; and

b. preparation of tungsten-based twisted and wrapped cut-resistant yarn: wrapping a high-molecular-weight polyethylene fiber around the tungsten-based twisted yarn obtained in step a, at the twisting degree of 120 to 280 twists/meter, to prepare the tungsten-based twisted and wrapped cut-resistant yarn.

2. The method of preparing tungsten-based twisted and wrapped cut-resistant yarn according to claim 1, wherein in the tungsten-based twisted yarn in step a, the tungsten filament accounts for 35% to 75%, and the auxiliary yarn I accounts for 25% to 65%.

3. The method of preparing tungsten-based twisted and wrapped cut-resistant yarn according to claim 1, wherein the auxiliary yarn I in step a is made from one of nylon, polyester, cotton, bamboo fiber, and tencel; and has a linear density of 40D to 140D.

4. The method of preparing tungsten-based twisted and wrapped cut-resistant yarn according to claim 3, wherein the linear density of the nylon is preferably 40D, 50D, 70D, 100D, or 140D.

5. The method of preparing tungsten-based twisted and wrapped cut-resistant yarn according to claim 1, wherein one or more of tungsten filaments with diameters of 0.01 mm, 0.015 mm, 0.02 mm, 0.025 mm, and 0.03 mm are selected as the tungsten filament in step a.

6. The method of preparing tungsten-based twisted and wrapped cut-resistant yarn according to claim 1, wherein in the tungsten-based twisted and wrapped cut-resistant yarn in step b, the tungsten-based twisted yarn accounts for 35% to 65%, and the polyethylene fiber accounts for 35% to 65%.

7. The method of preparing tungsten-based twisted and wrapped cut-resistant yarn according to claim 1, wherein the polyethylene fiber in step b has a molecular weight of 10W to 500W and a linear density of 50D to 400D.

8. The method of preparing tungsten-based twisted and wrapped cut-resistant yarn according to claim 7, wherein the linear density of the polyethylene fiber is preferably 50D, 100D, 150D, 200D, 300D, or 400D.

9. A method of producing a textile from tungsten-based twisted and wrapped cut-resistant yarn, comprising: by a knitting process with double yarn feeders U2, producing a textile from spandex stretch yarn and the tungsten-based twisted and wrapped cut-resistant yarn, wherein the tungsten-based twisted and wrapped cut-resistant yarn accounts for 60% to 80%, and the spandex stretch yarn accounts for 20% to 40%.

10. The method of producing a textile from tungsten-based twisted and wrapped cut-resistant yarn according to claim 9, wherein the spandex stretch yarn is made from nylon-wrapped spandex, polyester-wrapped spandex, or polyethylene-fiber-wrapped spandex; and is made by twisting together a spandex filament with the specification of 20D to 100D and auxiliary yarn II with the specification of 50D to 200D at the twisting degree of 180 to 580 twists/meter, the auxiliary yarn II being made from nylon, polyester or polyethylene, and the tension ratio of the spandex stretch yarn ranging from 1.5 to 2.4.

Drawing