Anti-ultraviolet fabric

Abstract

The anti-ultraviolet fabric comprises a base cloth area, a middle area and a high area, the high area comprises a left side area and a right side area, the left side area protrudes towards the middle of the high area along the left side, the right side area protrudes towards the middle of the high area along the right side, the left side area and the right side area are connected at the highest point, and an included angle alpha is formed between the left side area and the right side area. The high area is higher than the middle area which is higher than the base cloth area. The high area, the middle area and the base cloth area are formed by interweaving the fibers, the triangular protrusions are formed on the surface of the high area, the incident angle of ultraviolet rays is changed, the middle area integrally protrudes, the porosity among the yarns is reduced, and meanwhile the internal space is increased; the base cloth area absorbs the ultraviolet rays gradually weakened by the high area and the middle area through fiber characteristics, so that the harm of the ultraviolet rays to a human body is reduced, and the three areas are mutually balanced, so that the structural change is reduced after the fabric is used for a long time.

Description

Technical Field

[0001] This utility model relates to the field of fabrics, and more specifically, to an anti-ultraviolet fabric. Background Technology

[0002] Commercially available UV-resistant fabrics undergo chemical treatment to enhance their UV protection. However, long-term use, washing, and stretching can cause changes in the fabric structure, leading to the loss of UV protectants and thus affecting the fabric's UV protection effect. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an anti-ultraviolet fabric. This fabric is formed by interweaving polyester fibers into three regions: a high-area region, a medium-area region, and a base fabric region. Triangular protrusions are formed on the surface of the high-area region. These protrusions alter the incident angle of ultraviolet rays during irradiation, allowing the ultraviolet rays to be reflected and scattered multiple times within the high-area region. The medium-area region is entirely protruding, with a lower height than the high-area region. Furthermore, by increasing the fabric's thickness and density, the medium-area region reduces the porosity between yarns and increases internal space, thereby reducing ultraviolet penetration and increasing breathability. The base fabric region is a flat area that, through its fiber properties, absorbs the gradually weakened ultraviolet rays from the high-area and medium-area regions, thus reducing the harm of ultraviolet rays to the human body. The three regions, through their different weaves, mutually counterbalance each other, ensuring that the density of the base fabric region is greater than that of the medium-area region, and the density of the medium-area region is greater than that of the high-area region. This reduces structural changes in the three regions over long-term use.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an anti-ultraviolet fabric, comprising a base fabric area, a middle area, and a high area. The high area includes a left side area and a right side area. The left side area protrudes from the left side toward the middle of the high area, and the right side area protrudes from the right side toward the middle of the high area. The left side area and the right side area are connected at the highest point, and an angle α is formed between the left side area and the right side area. The high area is higher than the middle area, and the middle area is higher than the base fabric area.

[0005] The present invention is further configured such that the included angle α between the left side region and the right side region is 45°–135°.

[0006] The present invention is further configured such that, along the fabric width direction, the high region and the middle region are arranged alternately, and along the fabric length direction, the high region and the middle region are arranged alternately, with the base fabric area located in the middle surrounded by the middle region and the high region.

[0007] The present invention is further configured such that the middle region is horizontally olive-shaped, the high region is vertically olive-shaped, the two ends of the middle region are connected to the widest point in the middle of the high region, and the two ends of the high region are connected to the widest point in the middle of the middle region.

[0008] The present invention is further configured such that the base fabric area is a quadrilateral, the two sides of the base fabric area along the length direction are connected to the middle region, and the two sides of the base fabric area along the width direction are connected to the height region.

[0009] The present invention is further configured such that the widest point M of the middle region is equal to the widest point N of the high region, and the distance L between the two ends of the middle region is equal to the distance H between the two ends of the high region.

[0010] The present invention is further configured such that the fabric is formed by interlacing 80 warp yarns and 80 weft yarns, the high region is formed by interlacing 16 warp yarns and 64 weft yarns, the middle region is formed by interlacing 64 warp yarns and 16 weft yarns, and the base fabric region is formed by interlacing 24 warp yarns and 24 weft yarns.

[0011] The present invention is further configured such that both the warp and weft yarns of the fabric are made of polyester fiber.

[0012] In summary, this utility model has the following beneficial effects:

[0013] The fabric is divided into three zones: a high zone, a mid zone, and a base zone, formed by interweaving polyester fibers. Each zone has a different height, and the high zone has triangular protrusions on its surface, creating a prism structure. When exposed to ultraviolet (UV) radiation, this structure alters the angle of UV incidence, causing multiple reflections and scatterings on the fabric surface. This increases the reflection path of UV rays and reduces their penetration. The mid zone, also protruding, increases fabric thickness through float length and density through plain weave, reducing porosity between yarns while increasing internal space. This makes it harder for UV rays to penetrate and improves breathability. The base zone is a smooth fabric that absorbs the UV rays reflected and scattered by the high and mid zones. The combination of these three zones increases the number of reflections and scatterings of UV rays, gradually weakening their energy and reducing their penetration. This results in physical UV protection. The different weaves of the three zones create a balance among them, minimizing structural changes over long-term use. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an anti-UV fabric in this embodiment;

[0015] Figure 2for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 for Figure 1 A cross-sectional view along the B-B direction;

[0017] Figure 4 for Figure 1 A cross-sectional view along the C-C direction;

[0018] Figure 5 This is a weave diagram of an anti-UV fabric in this embodiment.

[0019] Figure labeling: base area 90, middle area 91, high area 92, left side area 921, right side area 922. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1As shown in Figure 5, this embodiment discloses an anti-UV fabric, including a base fabric area 90, a middle area 91, and a high area 92. The fabric is formed by interlacing 80 warp yarns and 80 weft yarns. The high area 92 is formed by interlacing 16 warp yarns and 64 weft yarns. In one weave cycle, the 1st to 16th warp yarns interlac with the 1st to 64th weft yarns to form a complete high area 92. The 41st to 56th warp yarns interlac with the 1st to 24th weft yarns and the 41st to 80th weft yarns to form the next complete high area 92. Therefore, the high area 92 will not be too concentrated in the fabric cycle, thus ensuring the uniformity of the distribution of the high area 92 in the fabric. This is because the high area 92 is formed by interlacing 16 warp yarns and 64 weft yarns, and among the 16 warp yarns, the first 8 warp yarns interlac with the 64 weft yarns. Left zone 921, the last 8 warp yarns interweave with 64 weft yarns to form right zone 922. Therefore, high zone 92 includes both left zone 921 and right zone 922. Because the 16 warp yarns and 64 weft yarns interweave using a 2-up-1-down twill weave and a 2-up-2-down twill weave, and the area surrounding this interweaving uses a plain weave and floats, when the fabric structure is the same, the plain weave area will arch the twill area because it constitutes the majority of the fabric. Furthermore, because the weave of the first 8 warp yarns is symmetrical to that of the last 8 warp yarns, and because the 16 warp yarns in high zone 92 arch higher the further away from the plain weave and floats due to the weave and density, the higher the arch is closer to the plain weave and floats. The lower the arch height at the point where the warp thread is positioned, the higher the arch is. Therefore, with the 9th warp yarn as the midpoint, the first 8 warp yarns interweave with the 64 weft yarns, gradually forming a bulge along the direction of the 9th warp yarn. Similarly, the last 7 warp yarns interweave with the 64 weft yarns, also gradually forming a bulge along the direction of the 9th warp yarn. The first 8 warp yarns interweave to form the left side region 921, and the last 8 warp yarns interweave to form the right side region 922. Therefore, the left side region 921 begins to bulge from the position of the 1st warp yarn on the left towards the 9th warp yarn in the middle of the higher region 92, while the right side region 922 begins to bulge from the position of the 16th warp yarn on the right towards the 9th warp yarn in the middle of the higher region 92. Because the 9th warp yarn is the highest point in the higher region 92, the left side region 921 and the right side region 922 connect at the highest point. Since both the left side region 921 and the right side region 922... To gradually bulge towards the midpoint of the higher region 92, the left region 921 and the right region 922 connect at the position of the 9th warp yarn, forming an angle α. The angle α between the left and right regions 921 and 922 is 45°–135°, preferably 120°. If the angle between the left and right regions 921 and 922 is less than 45°, the distribution of ultraviolet rays on the fabric surface will be uneven, resulting in poor reflection of ultraviolet light in some areas and reducing the overall UV resistance of the fabric. If the angle between the left and right regions 921 and 922 is greater than 135°, the fabric will not be able to reflect ultraviolet rays, allowing ultraviolet rays to penetrate directly.This reduces the fabric's overall UV resistance.

[0022] Because both the warp and weft yarns of the fabric are made of polyester fiber, and because the cross-section of polyester fiber is usually circular and the surface of polyester fiber is smooth, when the polyester fibers interweave to form the triangular protrusions of the high region 92, the high region 92 forms a prism-like structure through the interweaving of polyester fibers. Therefore, when ultraviolet rays are irradiated, the incident angle of ultraviolet rays can be changed through the triangular protrusions, so that ultraviolet rays are reflected and scattered multiple times on the fabric surface of the high region 92. This increases the reflection path of ultraviolet rays and reduces the penetration rate of ultraviolet rays, thereby increasing the fabric's resistance to ultraviolet rays. In addition, the triangular protrusions formed by the high region 92 increase the breathability of the fabric.

[0023] The central region 91 is formed by the interweaving of 64 warp yarns and 16 weft yarns. In one weave cycle, warp yarns 17-80 interweave with weft yarns 25-40 to form a complete central region 91, and warp yarns 1-40 and warp yarns 57-80 interweave with weft yarns 65-80 to form another complete central region 91. Similarly, in the fabric weave cycle, central region 91 will not be too concentrated in the length or width direction of the fabric because it is a combination of plain weave and floats. Due to the presence of floats in central region 91, and the fact that plain weave dominates the surrounding area, at the same density, In the middle region 91, a bulge is formed, and the ratio of plain weave yarns to float yarns in the middle region 91 is 4:4. The float yarns are connected by the plain weave, so the bulge in the middle region 91 is an overall bulge. Because the float yarns are compressed by the plain weave, the presence of the float yarns increases the thickness of the fabric, thereby reducing the penetration rate of ultraviolet rays. Furthermore, the bulge of the float yarns in the middle region 91 causes the plain weave to compress the fibers to their original positions. Therefore, the plain weave reduces the porosity between polyester fibers, which also reduces the penetration rate of ultraviolet rays, thereby increasing the overall UV resistance of the fabric.

[0024] The base fabric area 90 is formed by the interlacing of 24 warp yarns and 24 weft yarns. In one weave cycle, warp yarns 17-40 interlac with weft yarns 1-24 to form a complete base fabric area 90; warp yarns 17-40 interlac with weft yarns 41-64 to form a complete base fabric area 90; warp yarns 57-80 interlac with weft yarns 1-24 to form a complete base fabric area 90; and warp yarns 57-80 interlac with weft yarns 41-64 to form a complete base fabric area 90. Therefore, the base fabric area 90 is quadrilateral because, in one weave cycle, along the fabric width direction, there is a base fabric area 92 between two high areas 92. The distance between the two middle regions 91 is one base fabric region 90 along the length of the fabric. Therefore, the two sides of the base fabric region 90 along the length direction are connected to the middle regions 91, and the two sides of the base fabric region 90 along the width direction are connected to the high region 92. The base fabric region 90 is located in the middle between the middle regions 91 and the high region 92. Because the base fabric region 90 is formed by plain weave, it is a flat area. Because the base fabric region 90 is also formed by polyester fiber weave, and because the molecular structure of polyester fiber contains benzene rings, it can absorb the ultraviolet rays that are gradually weakened in the high and middle regions.

[0025] Because high region 92 is a twill weave, while medium region 91 is separated from plain weave by floats, the twill weave in high region 92 is compressed and raised by the plain weave, while medium region 91 is only partially compressed and raised by the plain weave. Therefore, the raised height of high region 92 is higher than that of medium region 91, and medium region 91 is higher than that of base fabric region 90. Thus, high region 92 increases the reflection path of ultraviolet rays and reduces the penetration of ultraviolet rays, while medium region 91 increases the density and thickness of the fabric to reduce the penetration of ultraviolet rays. Base fabric region 90 absorbs ultraviolet rays passing through high region 92 and medium region 91 through its flat structure, and also absorbs ultraviolet rays directly irradiated. However, because the area of ​​base fabric region 90 is interspersed between high region 92 and medium region 91, the amount of ultraviolet rays directly absorbed is lower, thus reducing the overall harm of ultraviolet rays to the human body.

[0026] Because high region 92 is formed by the combination of 2-up-1-down twill and 2-up-2-down twill, and because both left region 921 and right region 922 bulge from the edge to the middle, high region 92 is longitudinally olive-shaped. Middle region 91, because its weave along both sides of the width direction is connected to high region 92, is transversely olive-shaped because the edges of high region 92 pull on both sides of middle region 91 along the width direction. Middle region 91 is woven with weft yarns 25-40 and 65-80, while high region 92 is woven with weft yarns 1-64 and weft yarns 1-24 and 41-8... The weft yarns interweave, so the weft yarn interweaving positions in the middle region 91 are all located in the middle of the 64 weft yarns in the high region 92. While the arch height at the connection point between the high region 92 and the plain weave is not high, the arch height at the connection point between the high region 92 and the float yarn is higher than the arch height at the connection point between the high region 92 and the plain weave. Therefore, the middle position where the high region 92 connects to the middle region 91 is the highest point of the arch. Consequently, the two ends of the middle region 91 connect to the widest point in the middle of the high region 92. Therefore, the widest point of the high region 92 is not connected to the plain weave structure, thus preventing the widest point of the high region 92 from being too dense. The significant difference in width creates a buffer between the widest point of the high zone 92 and the plain weave, thus stabilizing the height of the widest point of the high zone 92 and maintaining the fabric's UV resistance. Similarly, because the warp yarns of the high zone 92 are interwoven with warp yarns 1-16 and 41-56, while the middle zone 91 is interwoven with warp yarns 17-80 and warp yarns 1-40 and 57-80, the interlacing position of the warp yarns in the high zone 92 is located in the middle of the 64 warp yarns in the middle zone 91. The middle zone 91, due to its lower arch at the junction with the plain weave,... However, the height of the arch at the connection between the middle region 91 and the twill weave is higher than the height of the arch at the connection between the middle region 91 and the plain weave. Therefore, the middle position where the middle region 91 and the high region 92 are connected is the highest point of the protrusion. Thus, the two ends of the high region 92 are connected to the widest point in the middle of the middle region 91. Because the middle region 91 is a combination of floating long lines and plain weave, it can stabilize the length of the high region 92 while making the middle region 91 form a flat protrusion. This allows the middle region 91 and the high region 92 to support each other in the protruding area, thereby maintaining the structural stability of the middle region 91 and the high region 92.

[0027] Because the middle region 91 is formed by 16 weft yarns and 64 warp yarns interwoven, while the high region 92 is also formed by 16 warp yarns and 64 weft yarns interwoven, and the base fabric region 90 connects the middle region 91 and the high region 92, the high region 92 and the middle region 91 alternate along the fabric width direction and along the fabric length direction. The middle positions of both the middle region 91 and the high region 92 are raised areas. Therefore, the widest point M of the middle region 91 is equal to the widest point N of the high region 92, and the distance L between the two ends of the middle region 91 is equal to the distance H between the two ends of the high region 92. Thus, the three regions, through their different regional effects, gradually weaken the energy of ultraviolet rays, thereby reducing the penetration ability of ultraviolet rays and forming physical anti-ultraviolet properties, replacing ultraviolet protective agents, thus improving the fabric's resistance to ultraviolet rays. The UV protection is more durable, and the different heights of the two areas increase the internal space of the fabric, further increasing its breathability. While the three areas are connected, their density is the same but their weave differs, resulting in varying tightness. The base fabric area 90 is plain weave, the middle area 91 is plain weave with floats, and the high area 92 is twill weave. Therefore, the base fabric area 90 is tighter than the middle area 91, and the middle area 91 is tighter than the high area 92. This interconnectedness creates a balance, with the tighter areas stabilizing the slightly less tighter areas. This prevents the fabric from undergoing structural changes easily even after long-term use or washing and stretching, thus maintaining its UV protection.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An anti-UV fabric, characterized by, The fabric includes a base cloth area (90), a middle area (91), and a high area (92), the high area (92) includes a left side area (921) and a right side area (922), the left side area (921) is convex to the middle of the high area (92) along the left side, the right side area (922) is convex to the middle of the high area (92) along the right side, and the left side area (921) and the right side area (922) are connected at the highest point, forming an included angle α between the left side area (921) and the right side area (922), the high area (92) is higher than the middle area (91), and the middle area (91) is higher than the base cloth area (90).

2. The anti-UV fabric according to claim 1, characterized in that, The included angle α between the left side area (921) and the right side area (922) is 45°-135°.

3. The anti-UV fabric according to claim 1, characterized in that, Along the width direction of the fabric, the high area (92) and the middle area (91) are arranged alternately, along the length direction of the fabric, the high area (92) and the middle area (91) are arranged alternately, and the base cloth area (90) is located in the middle of the high area (92) and the middle area (91).

4. The anti-UV fabric according to claim 1, characterized in that, The middle area (91) is transversely olive-shaped, the high area (92) is longitudinally olive-shaped, the two ends of the middle area (91) are connected to the widest middle of the high area (92), and the two ends of the high area (92) are connected to the widest middle of the middle area (91).

5. The anti-UV fabric according to claim 1, characterized in that, The base cloth area (90) is quadrilateral, two edges of the base cloth area (90) along the length direction are connected to the middle area (91), and two edges of the base cloth area (90) along the width direction are connected to the high area (92).

6. The anti-UV fabric according to claim 1, characterized in that, The widest part M of the middle area (91) is equal to the widest part N of the high area (92), and the interval L between the two ends of the middle area (91) is equal to the interval H between the two ends of the high area (92).

7. The anti-UV fabric according to claim 1, characterized in that, The fabric is formed by interweaving 80 warp yarns and 80 weft yarns, the high area (92) is formed by interweaving 16 warp yarns and 64 weft yarns, the middle area (91) is formed by interweaving 64 warp yarns and 16 weft yarns, and the base cloth area (90) is formed by interweaving 24 warp yarns and 24 weft yarns.

8. The anti-UV fabric according to claim 7, characterized in that, The warp yarns and the weft yarns of the fabric are both polyester fibers.

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