Double-layer polyester cotton fabric
By designing a through-groove and staggered groove structure in the double-layer polyester-cotton fabric, combined with a shielding sheet and a support sheet, the problem of balancing breathability and sun protection in summer with double-layer fabric is solved, achieving better sun protection and breathability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-06
AI Technical Summary
Double-layer polyester-cotton fabric cannot provide both sun protection and breathability in summer, as its pores allow light to pass through easily, affecting its sun protection effect.
The design incorporates staggered through-slots and grooves, combined with shielding and support plates. The inner and outer layers are formed by laser cutting and sewing, increasing breathability and reducing direct light contact. Composite yarns of polyester profiled fibers and cotton fibers are used to improve light resistance and breathability.
It achieves enhanced sun protection while maintaining breathability, reducing light penetration and improving the overall sun protection and breathability of the fabric.
Smart Images

Figure CN223972259U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fabric technology, and more specifically, to double-layer polyester-cotton fabric. Background Technology
[0002] Polyester-cotton fabric is a blend of polyester and cotton fibers, with a higher polyester content than cotton. It is a common material for making clothing.
[0003] Double-layered fabrics can make clothing fabrics more durable, but in summer when the temperature is high, double-layered fabrics can affect the airflow on both sides of the fabric. Therefore, people will make some holes in the fabric to increase the amount of air in contact with the body. However, at this time, outdoor sunlight can easily pass through these holes and reach the body. Therefore, a structure is designed to solve the problem that some fabrics cannot achieve both sun protection and breathability. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a double-layer polyester-cotton fabric, which improves the overall sun protection and breathability of the fabric through structural design.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: the double-layer polyester-cotton fabric includes an inner layer and an outer layer that are fixedly connected to each other. The outer layer has a plurality of through grooves, and the inner layer has a plurality of through slots that communicate with the through grooves. The width of the part of the through groove and the through slot is half the width of the through groove. A plurality of shielding pieces are fixedly connected to the side of the outer layer near the inner layer. The shielding pieces are correspondingly arranged with the parts of the through grooves and through slots that communicate with each other. A plurality of support pieces are fixedly connected to the side of the inner layer away from the outer layer.
[0006] The present invention is further configured such that: the length of the through groove is greater than the length of the through groove; the shielding piece includes a shielding strip and a plurality of protrusions that are in the same relative position as the plurality of through grooves; and the distance between the side of the protrusion away from the shielding strip and the sidewall of the through groove away from the shielding strip is greater than zero.
[0007] The present invention is further configured such that the side wall of the protrusion away from the shielding strip and the side wall of the through groove away from the shielding strip are located in the same vertical plane, and an air-permeable space is formed between adjacent protrusions, inner layer and outer layer.
[0008] The present invention is further configured such that the support piece and the shielding piece are misaligned, and the support piece and the inner layer are sewn together by a fixing line.
[0009] The present invention is further configured such that the outer layer, the inner layer and the shielding sheet are all woven from polyester-cotton yarn.
[0010] The present invention is further configured such that: the support sheet is woven from composite yarn, the composite yarn including core yarn one and core yarn two.
[0011] The present invention is further configured such that: the first core yarn is made of polyester shaped fibers with a cross-sectional shape of Y twisted together, and the second core yarn is made of cotton fibers twisted together.
[0012] In summary, the present invention has the following beneficial effects: the staggered arrangement of the through groove and the through slot can prevent light entering the fabric along the through groove from directly contacting the body surface through the through slot; the arrangement of the convex piece can close the through slot connected to the through groove, so that the light entering the fabric along the through groove will first directly illuminate the convex piece, further reducing the amount of light that passes through the inner layer and contacts the body surface. Attached Figure Description
[0013] Figure 1 A cross-sectional view of this utility model Figure 1 ;
[0014] Figure 2 A cross-sectional view of this utility model Figure 2 ;
[0015] Figure 3 This is a cross-sectional view of the composite yarn in this utility model.
[0016] In the diagram: 1. Inner layer; 2. Outer layer; 3. Through groove; 4. Through groove; 5. Blinding piece; 6. Support piece; 7. Fixing thread; 8. Composite yarn; 9. Core yarn one; 10. Core yarn two; 11. Breathable space. Detailed Implementation
[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0018] This double-layer polyester-cotton fabric, such as Figure 1 and Figure 2As shown, the fabric includes an inner layer 1 and an outer layer 2 that are fixedly connected to each other. The inner layer 1 and the outer layer 2 are sewn together by a sewing machine. The double-layer fabric design allows more light to be absorbed inside the fabric, thereby reducing the amount of light that passes through the inner layer 1 and comes into contact with the body surface. Several through-grooves 3 are cut along the thickness direction of the outer layer 2 using a laser cutting machine, and several through-slots 4 are cut along the thickness direction of the inner layer 1 using a laser cutting machine. The through-slots 4 reduce the contact area between the inner layer 1 and the body surface, and the length of the through-slots 4 is greater than the length of the through-grooves 3, allowing outside air to pass through the portion of the through-slots 4 longer than the through-grooves 3 and come into contact with the body surface, ensuring the basic breathability of the fabric. The slot 3 and the through slot 4 are staggered, so that light entering the fabric through the through slot 3 can shine on the inner layer 1, but cannot directly pass through the through slot 4 and contact the body surface, which enhances the light-blocking effect of the double-layer fabric. In addition, due to the presence of the blocking piece 5, a space for air flow is formed between the inner layer 1 and the outer layer 2. The through slot 3 and the through slot 4 are connected through this space, thereby ensuring the breathability of the double-layer fabric. The width of the part connecting the through slot 3 and the through slot 4 is half the width of the through slot 3. By reducing the width of the connecting part, the breathability of the structure is ensured while reducing the amount of light passing through the inner layer 1 and contacting the body surface, thus ensuring the light-blocking and breathability of the double-layer fabric.
[0019] like Figure 1 and Figure 2 As shown, a baffle 5 is sewn onto the side of the outer layer 2 near the inner layer 1 using a sewing machine. The baffle 5 includes a baffle strip and several protrusions. Several separation grooves are cut into the baffle 5 using a laser cutting machine, so that protrusions are formed on both sides of the separation grooves. The sidewall of the protrusion away from the baffle strip and the sidewall of the through groove 4 away from the baffle strip are located in the same vertical plane. The protrusions can close part of the through groove 4, so that the light entering the fabric through the through groove 3 will directly shine on the protrusions. The length of the protrusion is half the length of the baffle 5, and the fixing point of the protrusion to the outer layer 2 is on the baffle strip. After the baffle 5 is sized, substances such as starch in the sizing will adhere to the fabric surface. When the sizing dries, the substances adhering to the fabric surface will harden. By increasing the hardness of the baffle 5 itself, it can prevent... The convex piece hangs down into the through groove 4 under the action of gravity, which further ensures the overall light-blocking effect of the convex piece. The distance between the side of the convex piece away from the blocking strip and the side wall of the through groove 3 away from the blocking strip is greater than zero. Therefore, there is still space for air to flow between the side wall of the convex piece and the side wall of the through groove 4. The adjacent convex pieces, inner layer 1 and outer layer 2 form a breathable space 11. Outside air enters into the breathable space 11 through the through groove 3 and flows in the breathable space 11. Since the length of the through groove 4 is greater than the length of the through groove 3, there is a connecting part between the breathable space 11 and the through groove 4. Therefore, the outside air in the breathable space 11 can stably pass through the through groove 4 and contact the body surface. The structure allows the double-layer fabric to ensure both light blocking and breathability.
[0020] like Figure 1 and Figure 2 As shown, a support piece 6 is provided on the side of the inner layer 1 away from the outer layer 2. The support piece 6 is offset from the shielding piece 5. The support piece 6 increases the thickness of the inner layer 1 and prevents the support piece 6 from covering the through groove 3 and through groove 4, thus affecting the overall breathability of the fabric. At the same time, the support piece 6 reduces the contact area between the inner layer 1 and the body surface, allowing the outside air to come into contact with the inner layer 1 and the body surface, ensuring the breathability and comfort of the fabric. The support piece 6 and the inner layer 1 are sewn together by a fixing thread 7. The fixing thread 7 is made of polyester yarn and is sewn by a sewing machine to ensure the fixing effect of the support piece 6 and prevent the support piece 6 from shifting due to friction between the fabric and the body surface.
[0021] like Figure 2 and Figure 3 As shown, the support piece 6 is woven from composite yarn 8, which includes core yarn 1 9 and core yarn 2 10. Core yarn 1 9 and core yarn 2 10 are twisted by a twisting machine to form composite yarn 8. Core yarn 1 9 is made of polyester profiled fiber with a cross-sectional shape of Y by twisting by a twisting machine. The polyester profiled fiber increases the channels for external air to flow through the yarn while ensuring the yarn's own light resistance. Core yarn 2 10 is made of cotton fiber by twisting by a twisting machine. The breathability of cotton fiber itself is used to further enhance the overall breathability and sun protection performance of the yarn and fabric.
[0022] like Figures 1-3 As shown, polyester-cotton yarn is placed in a loom and woven to form an outer layer 2, an inner layer 1, and a shielding layer. Several through grooves 3 are cut along the thickness direction of the outer layer 2 using a laser cutting machine, and several through grooves 4 are cut along the thickness direction of the inner layer 1 using a laser cutting machine. Several separation grooves are first cut on the shielding layer using a laser cutting machine, thereby forming protrusions on both sides of the separation grooves. Then, the shielding layer is cut into several shielding pieces 5 using a laser cutting machine. The shielding pieces 5 are sewn to one side of the outer layer 2 using a sewing machine. Composite yarn 8 is placed in a loom and woven to form a support layer. Then, the support layer is cut into several support pieces 6 using a laser cutting machine. The support pieces 6 and the inner layer 1 are sewn together using a sewing machine using a fixing thread 7. Finally, the inner layer 1 and the outer layer 2 are sewn together using a sewing machine.
[0023] 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. A double-layered polyester-cotton fabric comprising an inner layer (1) and an outer layer (2) fixedly connected to each other, characterized in that: The outer layer (2) is provided with a plurality of through grooves (3), the inner layer (1) is provided with a plurality of through grooves (4) communicated with the through grooves (3), the width of the communicated part of the through grooves (3) and the through grooves (4) is half of the width of the through grooves (3), the side of the outer layer (2) close to the inner layer (1) is fixedly connected with a plurality of shielding pieces (5), the shielding pieces (5) are correspondingly arranged with the communicated part of the through grooves (3) and the through grooves (4), and the side of the inner layer (1) away from the outer layer (2) is fixedly connected with a plurality of supporting pieces (6).
2. The double-layered polyester cotton fabric according to claim 1, wherein: The length of the through grooves (4) is greater than the length of the through grooves (3), the shielding piece (5) comprises a shielding strip and a plurality of tabs correspondingly arranged with the plurality of through grooves (3), and the distance between the side wall of the tab away from the shielding strip and the side wall of the through groove (3) away from the shielding strip is greater than zero.
3. The double-layered polyester cotton fabric according to claim 2, characterized in that: The side wall of the tab away from the shielding strip and the side wall of the through groove (4) away from the shielding strip are located in the same vertical plane, and the adjacent tabs, the inner layer (1) and the outer layer (2) are surrounded to form a breathable space (11).
4. The double-layered polyester cotton fabric according to claim 1, wherein: The supporting piece (6) and the shielding piece (5) are arranged in a staggered manner, and the supporting piece (6) and the inner layer (1) are sewn together by a fixing line (7).
5. The double-layered polyester cotton fabric according to claim 1, wherein: The outer layer (2), the inner layer (1) and the shielding piece (5) are all knitted by polyester cotton yarn.
6. The double-layered polyester cotton fabric according to claim 1, wherein: The supporting piece (6) is knitted by a composite yarn (8), and the composite yarn (8) comprises a core yarn one (9) and a core yarn two (10).
7. The double-layered polyester cotton fabric according to claim 6, characterized in that: The core yarn one (9) is twisted by polyester profiled fiber with Y-shaped cross section, and the core yarn two (10) is twisted by cotton fiber.