Cutting-resistant high-strength knitted fabric and production method thereof

Abstract

The invention discloses a cutting-resistant high-strength knitted fabric and a production method thereof. According to the cutting-resistant high-strength knitted fabric, the structure of wrap yarn sequentially comprises a core yarn, a first wrapping layer, a second wrapping layer and a third wrapping layer from inside to outside; the core wire is one or a mixture of more of glass fiber and basalt fiber; the first coating layer is formed by mixing one or more of high-strength polyethylene fibers and aramid fibers; the second coating layer is one or a mixture of more of aramid fiber, polyamide fiber, spandex fiber and polyester fiber; and the third coating layer is one or a mixture of more of aramid fiber, polyamide fiber, spandex fiber and polyester fiber. According to the cutting-resistant high-strength knitted fabric and the production method thereof, the problems that an existing cutting-resistant fabric is poor in tear resistance, puncture resistance and comfort are solved, and the cutting-resistant high-strength knitted fabric which is good in tear resistance and puncture resistance, light, thin and comfortable and the production method of the cutting-resistant high-strength knitted fabric are provided.

Description

Technical Field

[0001] The invention relates to the technical field of cut-resistant gloves, in particular to a cut-resistant high-strength knitted fabric and a production method thereof. Background Art

[0002] As a means of protecting the safety of hands, the demand for anti-cut gloves in the market is growing day by day. Metal fiber anti-cut gloves have excellent mechanical properties and excellent anti-cut performance, but they have poor toughness and are heavy. Compared with metal fiber anti-cut gloves, high-performance fiber anti-cut gloves are light and flexible, so they have become the main development target now.

[0003] As a key component of anti-cut gloves, high-performance fiber knitted fabrics are usually designed with materials such as ultra-high molecular weight polyethylene, aramid, glass fiber, and spandex. Since gloves are easily torn, punctured, and rubbed during use, anti-cut gloves need to have certain tear resistance, puncture resistance, comfort, and wear resistance while having cut-resistant protection performance. Although existing high-performance anti-cut fabrics have certain cut resistance, if the cutting yarn uses short fibers, the strength of the yarn produced is limited, so it is impossible to form a fabric with excellent tear resistance and puncture resistance. At the same time, if the cutting yarn uses aramid fiber or polyethylene fiber, due to its high rigidity, the improvement in touch feel is limited. The products processed by this solution are in direct contact with the skin and are less comfortable. In addition, the existing anti-cut textile yarns and fabrics therein also have problems such as complex manufacturing methods and low production rates. Summary of the invention

[0004] The present invention provides a cut-resistant high-strength knitted fabric and a production method thereof, aiming to solve the problems of poor tear resistance, puncture resistance and comfort of existing cut-resistant fabrics, and to provide a cut-resistant high-strength knitted fabric with good tearing and puncture resistance, lightness, comfort and a production method thereof.

[0005] In a first aspect, a cut-resistant high-strength knitted fabric is provided, wherein the structure of the coated yarn used is, from inside to outside, a core yarn, a first coating layer, a second coating layer, and a third coating layer;

[0006] The core fiber is a mixture of one or more of glass fiber and basalt fiber;

[0007] The first coating layer is a mixture of one or more of high-strength polyethylene fibers and aramid fibers;

[0008] The second covering layer is a mixture of one or more of aramid fiber, nylon fiber, spandex fiber and polyester fiber;

[0009] The third covering layer is a mixture of one or more of aramid fiber, nylon fiber, spandex fiber and polyester fiber.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the amount of the core wire is 10% to 30%, the amount of the first layer of covering wire is 50% to 80%, the amount of the second layer of covering wire is 5% to 20%, and the amount of the third layer of covering wire is 5% to 10%.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the fineness of the covered yarn is 55 tex to 100 tex.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the core yarn fineness of the covered yarn is 8 to 15 tex, and the core yarn twisting degree of the covered yarn is 20 to 200 twists / m.

[0013] In combination with the first aspect, in certain implementations of the first aspect, the fineness of the first layer of the covered yarn is 222 dtex to 888 dtex, and the twisting degree of the first layer of the covered yarn is 100 to 400 twists / m.

[0014] In combination with the first aspect, in certain implementations of the first aspect, the fineness of the second layer of the covered yarn is 44.4 dtex to 204 dtex, and the twisting degree of the second layer of the covered yarn is 500 to 1000 twists / m.

[0015] In combination with the first aspect, in certain implementations of the first aspect, the fineness of the third layer of the covered yarn is 44.4 dtex to 204 dtex, and the twisting degree of the third layer of the covered yarn is 500 to 1000 twists / m.

[0016] In combination with the first aspect, in certain implementations of the first aspect, the fabric density of the cut-resistant high-strength knitted fabric is: transverse density: 25 to 45 coils / 5 cm, and longitudinal density: 40 to 70 coils / 5 cm.

[0017] In combination with the first aspect, in certain implementations of the first aspect, the transverse line length of the cut-resistant high-strength knitted fabric is 40 to 70 cm / 100 coils.

[0018] In a second aspect, a method for producing a cut-resistant high-strength knitted fabric as described in any one of the implementations of the first aspect is provided, comprising:

[0019] S1.1: On the covering yarn machine, the first layer of covering yarn is covered on the outside of the core yarn, and the first layer of covering yarn is continuously drawn and twisted and finally wrapped around the passed core yarn;

[0020] S1.2: On the covering yarn machine, the second layer of covering yarn is covered on the outermost layer of the covered yarn obtained in S1.2 by twisting in the S direction or the Z direction to complete the second layer of covering;

[0021] S1.3: On a covering yarn machine, a third layer of covering yarn is covered on the outermost layer of the covered yarn obtained in S1.2 in a twisting manner opposite to that in S1.2, thereby completing the preparation of the covered yarn;

[0022] S2: forming a knitted fabric by winding, weaving and opening the covered yarn, including: S2.1: winding the covered yarn into a bobbin by a bobbin winder and hanging the bobbin; S2.2: weaving the yarn obtained by winding in S2.1 by a loom to obtain a knitted fabric; S2.3: opening the knitted fabric obtained in S2.2 along the opening line to obtain an open-width package knitted fabric;

[0023] S3, shaping: the knitted fabric woven in step S2 is squeezed and shaped on a water-washing flat-width shaping machine to obtain a cut-resistant high-strength knitted fabric; the shaping temperature is 90° C. to 150° C., and the shaping time is 30s to 150s.

[0024] Compared with the prior art, the solution provided by the present invention includes at least the following beneficial technical effects:

[0025] 1. The cut-resistant high-strength knitted fabric of the present invention uses glass fiber or basalt fiber as the core wire, which can make the coated yarn have high tensile strength and cut resistance. The high-strength polyethylene fiber and aramid fiber of the first coating layer are mainly used to protect the core wire of the inner layer, thereby improving the cut resistance and yarn strength of the cut-resistant composite yarn. The second and third coating layers solve the problem of poor comfort and wear resistance of the cut-resistant yarn.

[0026] 2. The cut-resistant knitted fabric obtained by the present invention not only has excellent cut-resistant performance, but also has excellent tear resistance and puncture resistance, soft hand feel, thin and smooth fabric, good wear resistance, can be used alone, or as a base fabric combined with other materials. It can be used as the key fabric of cut-resistant gloves and protective gloves, and can also be used as the fabric of protective products such as arm guards, cut-resistant neck covers, and cut-resistant clothing.

[0027] 3. The cut-resistant high-strength knitted fabric obtained by the present invention has a cut resistance index greater than 40, a fabric tear strength greater than 250N in the warp direction, greater than 200N in the weft direction, and a puncture strength greater than 150N (tested according to GB 24541-2009).

[0028] 4. The manufacturing method of the present invention is simple, the yarn has high strength, is easy to weave subsequently, has a high production rate, and can realize engineering production. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with specific embodiments.

[0030] The present invention provides a cut-resistant high-strength knitted fabric, which is woven from a covering yarn, wherein the covering yarn is composed of a core yarn and three layers of covering yarn, and the covering yarn structure includes a core yarn, a first layer of covering yarn, a second layer of covering yarn and a third layer of covering yarn from the inside to the outside.

[0031] In some embodiments, the present invention selects any one or more of glass fiber or basalt fiber as the core wire, selects any one or more of high-strength polyethylene fiber or aramid fiber as the first layer of covering wire, and the first layer of covering wire is covered outside the core wire, selects any one or more of aramid fiber, nylon fiber, spandex fiber or polyester fiber as the second layer of covering wire, and the second layer of covering wire is covered outside the first layer of covering wire. Select one or more of aramid fiber, nylon fiber, spandex fiber or polyester fiber as the third layer of covering wire, and the third layer of covering wire is outside the second layer of covering wire.

[0032] The present invention utilizes the covered yarn structure to make the woven knitted fabric light and flexible, and improves the comfort while ensuring the cutting resistance and abrasion resistance.

[0033] In some embodiments, the fabric weight of the cut-resistant high-strength knitted fabric can be set to 180-400 g / m 2 Based on the total weight of the fabric, the amount of the core yarn is 10% to 30%, the amount of the first layer of covering yarn is 50% to 80%, the amount of the second layer of covering yarn is 5% to 10%, and the amount of the third layer of covering yarn is 5% to 10%.

[0034] In some embodiments, the fabric density of the cut-resistant high-strength knitted fabric is 25 to 45 loops / 5 cm in transverse density and 40 to 70 loops / 5 cm in longitudinal density.

[0035] In some embodiments, the transverse line length of the cut-resistant high-strength knitted fabric is 40 to 70 cm / 100 loops.

[0036] In some embodiments, the cut-resistant high-strength knitted fabric is woven through the processes of winding, weaving, and opening the covered yarn, and the fineness of the covered yarn used is 55 tex to 100 tex.

[0037] In some embodiments, the core yarn fineness of the covered yarn is 8-15 tex, and the core yarn twisting degree of the covered yarn is 20-200 twists / m.

[0038] In some embodiments, the fineness of the first layer of covering filaments of the covering yarn is 222 dtex-888 dtex, and the twisting degree of the first layer of covering filaments of the covering yarn (when covering) is 100-400 twists / m.

[0039] In some embodiments, the fineness of the second layer of covering filaments of the covering yarn is 44.4 dtex-204 dtex, and the twisting degree of the second layer of covering filaments of the covering yarn (when covering) is 500-1000 twists / m.

[0040] In some embodiments, the fineness of the third layer of covering filaments of the covering yarn is 44.4 dtex-204 dtex, and the twisting degree of the third layer of covering filaments of the covering yarn (when covering) is 500-1000 twists / m.

[0041] The three-layer coating structure of the coated yarn can better wrap the core wire, ensure the mutual cooperation between the fibers, reduce the damage of the knitted fabric by external forces, and avoid the core wire being exposed to the outside, causing itching of the skin. The coated yarn selects aramid fiber, nylon, spandex fiber or polyester fiber as the outer layer of the coated yarn, which feels smooth and soft, making people feel comfortable when in direct contact with the human hand; high-strength polyethylene fiber or aramid fiber is selected as the first layer of the coated yarn to protect the core wire, making the coated yarn less likely to break when cut or worn; glass fiber or basalt fiber is selected as the core wire of the coated yarn, which can make the coated yarn have high tensile strength and improve the cutting resistance and wear resistance of the knitted fabric.

[0042] The present invention also provides a method for producing the above-mentioned cut-resistant high-strength knitted fabric, and the specific steps are as follows.

[0043] 1. Coating:

[0044] S1: twisting the raw material of the first layer of coated yarn to form the first layer of coated yarn with a certain diameter and twist.

[0045] S2: On a covering yarn machine, a first layer of covering yarn is covered on the outside of the core yarn, and the first layer of covering yarn is continuously drawn and twisted and finally wrapped on the passed core yarn. Preferably, the twist degree is 50 to 400 twists / m.

[0046] S3: On a covering yarn machine, the second layer of covering yarn is covered on the outermost layer of the covered yarn obtained in S2 by twisting in the S direction or the Z direction to complete the second layer of covering. Preferably, the twist is 500 to 1000 twists / m.

[0047] S4: On a covering yarn machine, the third layer of covering yarn is covered on the outermost layer of the covered yarn obtained in S3 in a twisting manner opposite to that in S3, thereby completing the preparation of the final covered yarn. Preferably, the twist is 500 to 1000 twists / m.

[0048] 2. Weaving: The above-mentioned covered yarn is subjected to winding, weaving and width-cutting processes to form a knitted fabric.

[0049] S1: The covered yarn is wound into a bobbin with larger capacity, better shape and certain density through a winding machine for hanging.

[0050] S2: The yarn obtained by winding in S1 is knitted using a loom to obtain a knitted fabric. Preferably, the loom is a cylindrical loom, and the fabric structure is a plain weave.

[0051] S3: The knitted fabric obtained in S2 is subjected to a width-opening treatment along a width-opening line to obtain an open-width packaged knitted fabric.

[0052] 3. Setting: The knitted fabric obtained in step 2 is pressed and set on a water-washing flat-width setting machine to obtain a cut-resistant high-strength knitted fabric. The setting temperature is 90°C to 150°C, and the setting time is 30s to 150s.

[0053] The cut-resistant high-strength knitted fabric provided by the invention has a cut-resistant index greater than 40, a fabric tearing strength greater than 250N in the warp direction, greater than 200N in the weft direction, and a puncture strength greater than 150N.

[0054] Embodiment 1:

[0055] A cut-resistant high-strength knitted fabric, wherein the core yarn is made of basalt fiber 120D, the first layer of covering yarn is made of high-strength polyethylene fiber 400D, the second layer of covering yarn is made of nylon fiber 60D, and the third layer of covering yarn is made of nylon fiber 60D. The dosage of each layer is 18%, 60%, 11%, and 11% respectively. The twisting twist of the core yarn is 100 twists / m, the twisting twist of the first layer of covering yarn is 100 twists / m, the twisting twist of the second layer of covering yarn is 680 twists / m, and the twisting twist of the third layer of covering yarn is 630 twists / m. Example 1 is tested, the warp tear strength is 415N, the weft tear strength is 390N, the puncture strength is 220N, and the cut resistance index is 45.

[0056] Embodiment 2:

[0057] A cut-resistant high-strength knitted fabric, wherein the core yarn is made of basalt fiber 100D, the first layer of covering yarn is made of aramid fiber 400D, the second layer of covering yarn is made of polyester fiber 75D, and the third layer of covering yarn is made of nylon fiber 60D. The dosage of each layer is 15%, 60%, 14%, and 11%, respectively. The core yarn twisting twist is 100 twists / m, the first layer of covering yarn twisting twist is 150 twists / m, the second layer of covering yarn twisting twist is 720 twists / m, and the third layer of covering yarn twisting twist is 670 twists / m. Example 1 is tested, and the warp tear strength is 290N, the weft tear strength is 275N, the puncture strength is 174N, and the cut resistance index is 37.

[0058] Although the present invention is disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the claims of the present invention.

Claims

1. A high-strength cut-resistant knitted fabric, characterized in that: The structure of the used covered yarn is core yarn, first covering layer, second covering layer and third covering layer from inside to outside. The core fiber is a mixture of one or more of glass fiber and basalt fiber; The first coating layer is a mixture of one or more of high-strength polyethylene fibers and aramid fibers; The second covering layer is a mixture of one or more of aramid fiber, nylon fiber, spandex fiber and polyester fiber; The third covering layer is a mixture of one or more of aramid fiber, nylon fiber, spandex fiber and polyester fiber.

2. The cut-resistant high-strength knitted fabric according to claim 1, characterized in that: The amount of the core wire is 10% to 30%, the amount of the first layer of covering wire is 50% to 80%, the amount of the second layer of covering wire is 5% to 20%, and the amount of the third layer of covering wire is 5% to 10%.

3. The cut-resistant high-strength knitted fabric according to claim 1, characterized in that: The fineness of the covered yarn is 55tex to 100tex.

4. The cut-resistant high-strength knitted fabric according to claim 1, characterized in that: The core yarn fineness of the covered yarn is 8 to 15 tex, and the core yarn twisting degree of the covered yarn is 20 to 200 twists / m.

5. The cut-resistant high-strength knitted fabric according to claim 1, characterized in that: The fineness of the first layer of the covered yarn is 222dtex-888dtex, and the twisting degree of the first layer of the covered yarn is 100-400 twists / m.

6. The cut-resistant high-strength knitted fabric according to claim 1, characterized in that: The fineness of the second layer of the covered yarn is 44.4 dtex to 204 dtex, and the twisting degree of the second layer of the covered yarn is 500 to 1000 twists / m.

7. The cut-resistant high-strength knitted fabric according to claim 1, characterized in that: The fineness of the third layer of the covered yarn is 44.4 dtex to 204 dtex, and the twisting degree of the third layer of the covered yarn is 500 to 1000 twists / m.

8. The cut-resistant high-strength knitted fabric according to claim 1, characterized in that: The fabric density of the cut-resistant high-strength knitted fabric is: transverse density: 25 to 45 coils / 5 cm, and longitudinal density: 40 to 70 coils / 5 cm.

9. The cut-resistant high-strength knitted fabric according to claim 1, characterized in that: The transverse line length of the cut-resistant high-strength knitted fabric is 40 to 70 cm / 100 coils.

10. A method for producing a cut-resistant high-strength knitted fabric according to any one of claims 1 to 9, characterized in that: include: S1.1: On the covering yarn machine, the first layer of covering yarn is covered on the outside of the core yarn, and the first layer of covering yarn is continuously drawn and twisted and finally wrapped around the passed core yarn; S1.2: On the covering yarn machine, the second layer of covering yarn is covered on the outermost layer of the covered yarn obtained in S1.2 by twisting in the S direction or the Z direction to complete the second layer of covering; S1.3: On a covering yarn machine, a third layer of covering yarn is covered on the outermost layer of the covered yarn obtained in S1.2 in a twisting manner opposite to that in S1.2, thereby completing the preparation of the covered yarn; S2: forming a knitted fabric by winding the covered yarn through bobbins, weaving and opening the width, including: S2.1: winding the covered yarn into bobbins by a bobbin winder and hanging the bobbins; S2.2: the yarn obtained by winding in S2.1 is knitted by using a loom to obtain a knitted fabric; S2.3: the knitted fabric obtained in S2.2 is subjected to a width-opening treatment along a width-opening line to obtain an open-width package knitted fabric; S3, shaping: the knitted fabric woven in step S2 is squeezed and shaped on a water-washing flat-width shaping machine to obtain a cut-resistant high-strength knitted fabric; the shaping temperature is 90° C. to 150° C., and the shaping time is 30s to 150s.