Oil-resistant and water-repellent fabric

Abstract

The utility model discloses an oil-resistant and water-repellent fabric which comprises a first oil-resistant and water-repellent layer on the outer side and a second oil-resistant and water-repellent layer on the inner side, and the first oil-resistant and water-repellent layer is sequentially and circularly arranged into an oil-resistant, oil-resistant and water-repellent area, a first antifouling area, a groove area and a second antifouling area in the breadth direction. And the second oil-resistant and water-repellent layer is formed by weaving blended yarns formed by modal fibers and anisotropic polyester fibers. The coating of the coating is changed through weaving, under the same density, the second oil-resistant and water-repellent layer woven by adopting roving counts is tight and is combined with yarns to prevent water and grease from entering, so that the stability of the fabric is better, the first oil-resistant and water-repellent layer is divided into four areas, the width ratio of the oil-resistant and water-repellent area to the first anti-fouling area to the groove area to the second anti-fouling area is about 22: 2: 4: 1, and the oil-resistant and water-repellent layer and the second anti-fouling area are separated from each other. The fabric is buffered through the groove areas while the breathability of the whole fabric is improved, so that the structural stability of the fabric is improved, and the strength of the fabric is improved.

Description

Technical Field

[0001] The utility model relates to the field of fabrics, and more specifically, to an oil and water repellent fabric. Background Art

[0002] Existing oil and water repellent fabrics usually coat a layer of polymer resin coating on the fabric surface, so as to block moisture and grease on the fabric surface and make the fabric have a certain protective effect. However, the coating will make the strength of the fabric poor, and it is easy to tear or break during use, resulting in the rupture of the polymer resin coating surface, so that moisture and grease enter through the ruptured gap. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art, and provide an oil and water repellent fabric. By changing the coating application through weaving, at the same density, a second oil and water repellent layer is formed by weaving with thick yarn count, so that the second oil and water repellent layer is woven tightly and combined with the yarns to prevent moisture and grease from entering, making the fabric have better stability. The first oil and water repellent layer is divided into four regions, and all are woven with fine yarn count. The width ratio of the oil and water repellent region, the first anti-fouling region, the groove region, and the second anti-fouling region is approximately 22:2:4:1. Due to the difference in yarn thickness, the gap between the yarns of the second oil and water repellent layer is tighter than that between the yarns of the first oil and water repellent layer. And the first oil and water repellent layer replaces part of the oil and water repellent region with the first anti-fouling region, the groove region, and the second anti-fouling region, thereby increasing the air permeability of the overall fabric and at the same time forming a buffer through the groove region, thus increasing the structural stability of the fabric and increasing the fabric strength.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses an oil and water repellent fabric, which is characterized in that it includes a first oil and water repellent layer on the outside and a second oil and water repellent layer on the inside. The first oil and water repellent layer is arranged in a cycle along the width direction in sequence as an oil and water repellent region, a first anti-fouling region, a groove region, and a second anti-fouling region. The second oil and water repellent layer is woven with a blended yarn formed by modal fiber and profiled polyester fiber.

[0006] Further, the second oil and water repellent layer includes 90 row coils as a cycle. The first row coil is that the H upper needle forms a loop and the G upper needle does not form a loop. The second row coil is that the G upper needle forms a loop and the H upper needle does not form a loop, and so on until 90 rows.

[0007] Further, the profiled polyester fiber adopts any one of a cross-shaped, triangular, or hollow cross-section.

[0008] Further, the oil- and water-repellent area includes 1 to 68 course wales as a cycle. In the 1st course wale, needles A and C knit and needles B and D tuck; in the 2nd course wale, needles A, B, C, and D all knit; in the 3rd course wale, needles A and C tuck and needles B and D knit; in the 4th course wale, needles A, B, C, and D all knit. This cycle repeats until the 68th course wale.

[0009] Further, the first anti-fouling area is located in the 69th to 74th course wales, and needles A, B, C, and D all knit.

[0010] Further, the groove area is located in the 75th to 87th course wales, and needles A, B, and C knit while needle D does not knit.

[0011] Further, the second anti-fouling area is located in the 88th to 90th course wales, and needles A, B, C, and D all knit.

[0012] Further, the width of the second anti-fouling area is 0.2 cm to 0.5 cm. The width of the first anti-fouling area is about 1.8 to 2 times that of the second anti-fouling area. The width of the groove area is about 3.7 to 4 times that of the second anti-fouling area. The width of the oil- and water-repellent area is about 21.5 to 22 times that of the second anti-fouling area.

[0013] Further, the groove area is located between the first anti-fouling area and the second anti-fouling area, and the height of the groove area is half of that of the first anti-fouling area and the second anti-fouling area.

[0014] Further, the oil- and water-repellent area is woven with a blended yarn of 150D polyester fiber and nylon fiber. The first anti-fouling area and the second anti-fouling area are woven with 50 / 2 polyester fiber. The groove area is woven with 150D nylon fiber.

[0015] The beneficial effects of the present utility model are as follows:

[0016] By changing the coating process through knitting, under the same course density, the structural stability of the second oil- and water-repellent layer is increased by using different yarn counts, and the compactness of the second oil- and water-repellent layer is increased due to the use of thick yarn counts, preventing water and oil from entering. The first oil- and water-repellent layer is divided into four areas: the first anti-fouling area, the groove area, and the second anti-fouling area, which replace part of the oil- and water-repellent area, increasing the air permeability of the fabric. Moreover, the stability of the fabric is increased through the groove area, thereby increasing the fabric strength. Description of the Drawings

[0017] Figure 1 It is a top view of an oil- and water-repellent fabric in this embodiment;

[0018] Figure 2 In this embodiment Figure 1 is a cross-sectional view taken along the direction A-A;

[0019] Figure 3 is a knitting diagram of an oil- and water-repellent fabric in this embodiment.

[0020] Reference numerals: the first oil- and water-repellent layer 100, the oil- and water-repellent area 101, the first anti-fouling area 102, the groove area 103, the second anti-fouling area 104, the second oil- and water-repellent layer 200. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] As Figures 1 to 3 shown, an oil- and water-repellent fabric includes the first oil- and water-repellent layer 100 on the outside and the second oil- and water-repellent layer 200 on the inside. Referring to Figure 3 , the second oil- and water-repellent layer 200 includes 90 course loops as a cycle. The first course loop is formed by knitting with the H upper needle and not knitting with the G upper needle. The second course loop is formed by knitting with the G upper needle and not knitting with the H upper needle. This cycle continues to 90 courses. And the second oil- and water-repellent layer 200 is knitted from a blended yarn formed by modal fiber and profiled polyester fiber. Since the profiled polyester fiber adopts any one of a cross-shaped, triangular or hollow cross-section, preferably, the profiled polyester fiber adopts a cross-shaped cross-section, thereby increasing the fiber surface area. And the cross-shaped cross-section has 4 grooves longitudinally, which is 20% more area than ordinary polyester fibers. Thus, the second oil- and water-repellent layer 200 has better air permeability. And because of the larger area, the structural stability of the fabric can be better. The profiled polyester fiber and modal fiber are blended into a 32s yarn. On a loom with 28 needles / 32 inches, 90 columns / 5 cm are adopted, so that the knitting between the fabric yarns is relatively tight. Because of the grooves of the profiled polyester fiber, the yarn has a siphon effect. However, because the second oil- and water-repellent layer 200 is knitted relatively tightly and hydrophobic raw materials are used, when water and oil enter and come into contact, the water and oil will be led out to the first oil- and water-repellent layer 100 through the grooves, so that the fabric remains fresh.

[0023] Referring to Figure 3, the first oil and water repellent layer 100 is arranged in a cycle along the width direction in sequence as an oil and water repellent area 101, a first anti-fouling area 102, a groove area 103 and a second anti-fouling area 104. The oil and water repellent area 101 includes 1 to 68 coil rows as a cycle. The first coil row is knitted with needles A and C to form loops, and needles B and D to form tucks. The second coil row is knitted with needles A, B, C, and D to form loops. The third coil row is knitted with needles A and C to form tucks, and needles B and D to form loops. The fourth coil row is knitted with needles A, B, C, and D to form loops. The first anti-fouling area 102 is located in the 69th to 74th coil rows, and all are knitted with needles A, B, C, and D to form loops. The groove area 103 is located in the 75th to 87th coil rows, and all are knitted with needles A, B, and C to form loops, and needle D does not form loops. The second anti-fouling area 104 is located in the 88th to 90th coil rows, and all are knitted with needles A, B, C, and D to form loops.

[0024] Both the first anti-fouling area 102 and the second anti-fouling area 104 are made of 50 / 2 polyester fiber. Under a loom with 28 needles / 32 inches, they are knitted with 90 courses / 5 cm. Therefore, under the same horizontal density, the oil and water repellency of the first anti-fouling area 102 and the second anti-fouling area 104 is smaller than that of the second oil and water repellent layer 200. Therefore, the first anti-fouling area 102 and the second anti-fouling area 104 provide an auxiliary function of oil and water repellency to the second oil and water repellent layer 200. And because the gap between the yarns in the first anti-fouling area 102 and the second anti-fouling area 104 is larger than the gap between the yarns in the second oil and water repellent layer 200, the air permeability of the first anti-fouling area 102 and the second anti-fouling area 104 is better than that of the second oil and water repellent layer 200, so that the fabric is not stuffy. And because the second oil and water repellent layer 200 is knitted tightly, the first anti-fouling area 102 and the second anti-fouling area 104 strengthen the fabric structure of the second oil and water repellent layer 200, thus enhancing the stability of the fabric.

[0025] Refer to Figure 1, the width of the second anti-fouling area 104 is 0.2 cm to 0.5 cm. Preferably, the width of the second anti-fouling area 104 is 0.3 cm. The width of the first anti-fouling area 102 is about 1.8 to 2 times the width of the second anti-fouling area 104. Preferably, the width of the first anti-fouling area 102 is about 2 times the width of the second anti-fouling area 104, about 0.4 cm to 1 cm. Preferably, the width of the first anti-fouling area 102 is about 0.6 cm. The width of the groove area 103 is about 3.7 to 4 times the width of the second anti-fouling area 104. Preferably, the width of the groove area 103 is about 4 times the width of the second anti-fouling area 104, about 0.8 cm to 2 cm. Preferably, the width of the groove area 103 is about 1.2 cm. The width of the oil and water repellent area 101 is about 21.5 to 22 times the width of the second anti-fouling area 104. Preferably, the width of the oil and water repellent area 101 is about 22 times the width of the second anti-fouling area 104, about 4.4 cm to 11 cm. Preferably, the width of the oil and water repellent area 101 is about 6.6 cm. Part of the oil and water repellent area 101 is replaced by the first anti-fouling area 102, the groove area 103, and the second anti-fouling area 104. By changing the coating process of the fabric, the strength of the fabric is enhanced, and the oil and water repellent area 101 > the groove area 103 > the first anti-fouling area 102 > the second anti-fouling area 104. When water and oil come into contact with the fabric surface, the oil and water repellent area 101 floats the water and oil on the fabric surface through the blended yarn of polyester fiber and nylon fiber. Since the fibers are not as tight as the coating, part of them will enter the second oil and water repellent layer 200. Because the second oil and water repellent layer 200 is woven more tightly than the first oil and water repellent layer 100, and because of the fiber grooves of the second oil and water repellent layer 200, when water and oil enter the second oil and water repellent layer 200 without passing through the first oil and water repellent layer 100, the siphon effect of the grooves will lead the water and oil to the first oil and water repellent layer 100. Since the first oil and water repellent layer 100 uses hydrophobic raw materials, water and oil cannot be adsorbed and enter, thus keeping the fabric dry.

[0026] Refer to Figure 2 , the groove area 103 is located between the first anti-fouling area 102 and the second anti-fouling area 104, and the height of the groove area 103 is half of that of the first anti-fouling area 102 and the second anti-fouling area 104. Therefore, the groove area 103 forms grooves through nylon fibers. Since the water absorption rate and oil absorption rate of nylon fibers are not high, the grooves formed by nylon fibers transmit external air, increasing the air permeability of the fabric. At the same time, because the groove area 103 forms grooves, it provides a buffer for the fabric to stretch oil, thus increasing the stability of the fabric.

[0027] The oil-resistant and water-repellent area 101 is woven by blending 150D polyester fiber and nylon fiber. The first anti-fouling area 102 and the second anti-fouling area 104 are woven with 50s polyester fiber. The groove area 103 is woven with 150D nylon fiber. The second oil-resistant and water-repellent layer 200 is woven with a blended yarn of 32s modal fiber and profiled polyester fiber. Under a loom of 28 needles / 32 inches, 90 columns / 5 cm are used. Therefore, under the same horizontal density, the second oil-resistant and water-repellent layer 200 uses a thick yarn count to make the inner side more compact, so that the structural stability of the fabric is strong. And because the gap between the yarns is small, water and oil cannot enter the fabric. The yarn counts of the four areas in the first oil-resistant and water-repellent layer 100 all use fine yarn counts, within the oil-resistant and water-repellent range of the oil-resistant and water-repellent area 101, the first anti-fouling area 102, the groove area 103, and the second anti-fouling area 104, the stability of the fabric is better, so that the strength of the fabric is stable.

[0028] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. An oil- and water-repellent fabric, characterized in that, It includes a first oil and water repellent layer (100) on the outside and a second oil and water repellent layer (200) on the inside. The first oil and water repellent layer (100) is arranged in a cyclic order along the width direction as an oil and oil repellent hydrophobic area (101), a first anti - pollution area (102), a groove area (103) and a second anti - pollution area (104). The second oil and water repellent layer (200) is woven from a blended yarn formed by modal fiber and profiled polyester fiber.

2. The oil- and water-repellent fabric according to claim 1, wherein The second oil and water repellent layer (200) includes 90 course loops as a cycle. The first course loop is formed by the H top needle and not formed by the G top needle. The second course loop is formed by the G top needle and not formed by the H top needle, and so on until the 90th course.

3. The oil and water repellent fabric according to claim 1, wherein The profiled polyester fiber adopts any one of a cross - shaped, triangular or hollow cross - section.

4. The oil- and water-repellent fabric according to claim 1, characterized in that, The oil and oil repellent hydrophobic area (101) includes 1 to 68 course loops as a cycle. The first course loop is formed by the A and C bottom needles and the B and D bottom needles are tuck - stitched. The second course loop is formed by the A, B, C, and D bottom needles all forming loops. The third course loop is formed by the A and C bottom needles being tuck - stitched and the B and D bottom needles forming loops. The fourth course loop is formed by the A, B, C, and D bottom needles all forming loops, and so on until the 68th course.

5. The oil-repellent and water-repellent fabric according to claim 1, wherein The first anti - pollution area (102) is located in the 69th to 74th course loops, and all are formed by the A, B, C, and D bottom needles.

6. The oil and water repellent fabric according to claim 1, wherein The groove area (103) is located in the 75th to 87th course loops, and all are formed by the A, B, and C bottom needles, and the D bottom needle does not form a loop.

7. The oil and water repellent fabric according to claim 1, wherein The second anti - pollution area (104) is located in the 88th to 90th course loops, and all are formed by the A, B, C, and D bottom needles.

8. The oil and water repellent fabric according to claim 1, characterized in that The width of the second anti - pollution area (104) is 0.2 cm to 0.5 cm. The width of the first anti - pollution area (102) is 1.8 to 2 times the width of the second anti - pollution area (104). The width of the groove area (103) is 3.7 to 4 times the width of the second anti - pollution area (104). The width of the oil and oil repellent hydrophobic area (101) is 21.5 to 22 times the width of the second anti - pollution area (104).

9. The oil and water repellent fabric according to claim 1, characterized in that, The groove area (103) is located between the first anti - pollution area (102) and the second anti - pollution area (104), and the height of the groove area (103) is half of the first anti - pollution area (102) and the second anti - pollution area (104).

10. The oil-repellent and water-repellent fabric according to claim 1, wherein The oil and oil repellent hydrophobic area (101) is woven from a blended yarn of 150D polyester fiber and nylon fiber. The first anti - pollution area (102) and the second anti - pollution area (104) are woven from 50 - count polyester fiber. The groove area (103) is woven from 150D nylon fiber.

Images