Double-layer composite fabric

Abstract

This utility model discloses a double-layer composite fabric, relating to the field of fabric technology. The key technical points are: it includes an inner layer and an outer layer fixedly connected to each other; an L-shaped support piece is fixedly connected to the side of the inner layer closest to the outer layer; every two support pieces form a support group; light-absorbing strips are fixedly connected to the side of adjacent support pieces within the support group; the outer layer has several through holes located on the side of the light-absorbing strips that are far apart from each other; the inner layer has several ventilation holes located between adjacent light-absorbing strips; and a protrusion is formed on the side of the outer layer closest to the inner layer, corresponding to the ventilation holes and abutting against the light-absorbing strips. This utility model uses the light-absorbing strips, support pieces, and protrusions to block the dispersion of light within the fabric. The bamboo charcoal yarn has a darker color, thus it can stably absorb light in contact with the fabric. Simultaneously, the bamboo charcoal yarn has good breathability, utilizing these characteristics to enhance the overall sun protection and breathability of the fabric.

Description

Technical Field

[0001] This utility model relates to the field of fabric technology, and more specifically, to double-layer composite fabrics. Background Technology

[0002] Double-layer composite fabric is formed by sewing or bonding two layers of textile fabric together. The two layers of textile fabric can be woven together with different yarns, thereby expanding the application range of the fabric.

[0003] When double-layered fabrics are used in summer clothing, it is necessary to ensure that the fabric has a good sun protection effect. Common fabrics are coated with a sun protection coating to ensure basic protection. However, the coating can penetrate into the fabric and block the pores formed by the fabric weave, thus blocking the airflow and exchange between the two sides of the fabric and reducing the breathability and comfort of the fabric when used.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a double-layer composite fabric.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: The double-layer composite fabric includes an inner layer and an outer layer that are fixedly connected to each other. The inner layer is fixedly connected to a support piece with an L-shaped cross-section on the side near the outer layer. Every two support pieces form a support group. Light-absorbing strips are fixedly connected to the side of several support pieces in the support group that are close to each other. Several through holes are opened on the outer layer located on the side of adjacent light-absorbing strips that are far from each other. Several ventilation holes are opened on the inner layer located between adjacent light-absorbing strips. A protrusion is formed on the side of the outer layer near the inner layer that corresponds to the several ventilation holes and abuts against the light-absorbing strips.

[0007] The present invention is further configured such that the width of the side with a smaller thickness of the support sheet is greater than the width of the side with a larger thickness of the support sheet, and the top surface of the side with a larger thickness of the support sheet abuts against the outer layer.

[0008] The present invention is further configured such that: the light-absorbing strip is composed of several light-absorbing blocks, and a breathable channel is formed between adjacent light-absorbing blocks; the light-absorbing blocks are composed of several bamboo charcoal fibers.

[0009] The present invention is further configured such that: the protrusion is integrally formed on the outer layer, the outer layer is configured as a convex strip structure, and the width of the protrusion is greater than the distance between adjacent support pieces.

[0010] The present invention is further configured such that: the outer layer and the support sheet are both woven from composite yarns, the composite yarns including bamboo charcoal yarns and polyester profiled yarns.

[0011] The present invention is further configured such that: the inner layer is woven from polyester profiled yarn two, and the cross-sectional shape of both polyester profiled yarn one and polyester profiled yarn two is Y-shaped.

[0012] In summary, this utility model has the following beneficial effects: a channel for air to flow is formed between the side wall of the thicker side of the support sheet and the light-absorbing strip, and several through holes are connected to the channel. Therefore, it can be ensured that the light entering the fabric through the through holes can shine on the support sheet, while the air entering the fabric through the through holes can flow inside the fabric. The convex piece abuts against the light-absorbing strip, thus confining the light between the support sheet and the convex piece, preventing the light from scattering inside the fabric and shining on the body surface through the ventilation holes, thus ensuring the sun protection and breathability of the fabric during use. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the present invention;

[0014] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0015] In the diagram: 1. Inner layer; 2. Outer layer; 3. Support sheet; 4. Light-absorbing strip; 5. Through hole; 6. Ventilation hole; 7. Raised sheet. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] This double-layer composite 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. An L-shaped support piece 3 is fixedly connected to the side of the inner layer 1 closest to the outer layer 2. Each pair of support pieces 3 forms a support group. The top surface of the thicker side of the support piece 3 abuts against the outer layer 2, thus supporting the inner layer 1 and outer layer 2 and creating a channel for airflow between them. Light-absorbing strips 4 are fixedly connected to the sides of adjacent support pieces 3 within a single support group. Several through holes 5 are drilled along the thickness direction of the outer layer 2 using a laser punch. A breathable space is formed between the thicker sidewall of the support piece 3 and the light-absorbing strips 4. The through holes 5 communicate with this breathable space, allowing light entering the fabric through the through holes 5 to directly illuminate the bottom surface of the support piece 3. When the light diffuses within the fabric, some of the light is absorbed by the support piece 3. With the inner walls abutting each other, another portion of the light is absorbed by the light-absorbing strips 4, thereby reducing the amount of light passing through the inner layer 1. Along the thickness direction of the inner layer 1, a number of ventilation holes 6 are formed between adjacent light-absorbing strips 4 by a laser punching machine. The number of through holes 5 and the number of ventilation holes 6 are staggered, so the light entering the fabric through the through holes 5 cannot directly pass through the ventilation holes 6 and shine on the skin surface. On the side of the outer layer 2 near the inner layer 1, a protrusion 7 is formed that corresponds to the number of ventilation holes 6 and abuts against the light-absorbing strips 4. The thickness of the protrusion 7, the light-absorbing strips 4 and the support piece 3 and the distance from the outer layer 2 and the inner layer 1 are equal. Therefore, when the light entering the fabric through the through holes 5 diffuses inside the fabric, the protrusion 7 and the light-absorbing strips 4 can limit the diffusion of the light, preventing the light from diffusing towards the direction of the ventilation holes 6 and passing out through the ventilation holes 6, thereby enhancing the overall sun protection effect of the fabric.

[0018] The width of the side with less thickness in support piece 3 is greater than the width of the side with greater thickness, thereby increasing the width of the breathable space and allowing more outside air to flow inside the fabric. The light-absorbing strip 4 is composed of several light-absorbing blocks, with breathable channels formed between adjacent blocks. Therefore, air entering the fabric along support piece 3 can pass through these channels and into the breathable holes 6 to contact the skin surface. The length of the breathable groove is less than the length of the light-absorbing block, thus reducing the amount of light passing through the inner layer 1 and contacting the skin surface while ensuring basic breathability. The light-absorbing blocks are made of several bamboo charcoal... The fabric is composed of several bamboo charcoal fibers that are electrostatically flocked onto the support sheet 3 to form several light-absorbing blocks. The bamboo charcoal fibers are dark in color, so the light-absorbing blocks can absorb the light that comes into contact with them under the action of the bamboo charcoal fibers. Since the light-absorbing blocks are composed of several bamboo charcoal fibers, the surface roughness of the support sheet 3 is increased, allowing the light shining on its surface to be dispersed in all directions under the action of the several bamboo charcoal fibers. This further reduces the amount of light that can pass through the ventilation holes 6 and shine on the body surface, thus enhancing the overall sun protection and light-blocking performance of the fabric.

[0019] The raised sheet 7 is integrally formed on the outer layer 2, and the outer layer 2 is set as a raised strip structure. The width of the raised sheet 7 is greater than the distance between adjacent support sheets 3 in the same support group, so as to shorten the time required for light to come into contact with the raised sheet 7. At the same time, it can avoid the situation where light passes between the light-absorbing strip 4 and the raised sheet 7 and passes through the ventilation hole 6 due to the excessively short width of the raised sheet 7. Since the top surface of the raised sheet 7 and the light-absorbing block abuts, the light cannot pass through the two and enter the ventilation hole 6. However, the light can pass through the adjacent bamboo charcoal fiber and enter the space between the adjacent ventilation holes 6 and finally pass through the ventilation hole 6 to contact the body surface, ensuring that the fabric can take into account both sun protection and breathability when in use.

[0020] The outer layer 2 and the support sheet 3 are both woven from composite yarns, including bamboo charcoal yarn and polyester profiled yarn 1. The bamboo charcoal yarn and polyester profiled yarn 1 are twisted together in a twisting machine to form composite yarn. The bamboo charcoal yarn can not only absorb the light it comes into contact with, but also has good breathability. The inner layer 1 is woven from polyester profiled yarn 2. The cross-sectional shape of both polyester profiled yarn 1 and polyester profiled yarn 2 is Y-shaped. Polyester yarn itself has good light resistance, and the profiled polyester yarn increases the grooves inside the yarn, so that some of the light shining on the fabric can be reflected away, further reducing the amount of light that can pass through the fabric and come into contact with the body surface.

[0021] In the fabric production process, composite yarns are placed in a water-jet loom and woven using a raised stripe weave to form an outer layer 2 and several raised stripes. Several through holes 5 are drilled along the thickness direction of the outer layer 2 on both sides of the raised stripes using a laser perforation machine. Composite yarns are then placed in the water-jet loom to form a support layer. This support layer is then placed in a hot press to form several grooves. Several bamboo charcoal fibers are then fixed into these grooves using a flocking process, ensuring a certain distance exists between the two side walls of the flocked light-absorbing strips 4 in the width direction and the inner wall of the grooves. Finally, a laser perforation machine is used to... A laser cutting machine cuts the support layer around the hot-pressing area to form several support pieces 3. Polyester profiled yarn 2 is placed in a water-jet loom to weave into an inner layer 1. Several ventilation holes 6 are made along the thickness direction of the inner layer 1 using a laser punching machine. The thinner side of the support piece 3 is first sewn onto the inner layer 1 using a sewing machine. Since the width of the thinner part of the support piece 3 is greater than the width of the thicker part of the support piece 3, the support piece 3 can be stably fixed on the inner layer 1. Finally, the inner layer 1 and the outer layer 2 are sewn together using a sewing machine.

[0022] 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. Double-layer composite fabric comprising an inner layer (1) and an outer layer (2) fixedly connected to each other, characterized in that: The inner layer (1) is fixedly connected to a support plate (3) with an L-shaped cross section on the side near the outer layer (2). Each pair of support plates (3) forms a support group. A light-absorbing strip (4) is fixedly connected to the side of the support plates (3) in the support group that are close to each other. The outer layer (2) is provided with a number of through holes (5) located on the side away from each other of the adjacent light-absorbing strips (4). The inner layer (1) is provided with a number of vent holes (6) located between the adjacent light-absorbing strips (4). The outer layer (2) is provided with a protrusion (7) on the side near the inner layer (1) that corresponds to the number of vent holes (6) and abuts against the light-absorbing strips (4).

2. The double-layer composite fabric according to claim 1, characterized in that: The width of the side with a smaller thickness of the support piece (3) is greater than the width of the side with a larger thickness of the support piece (3), and the top surface of the side with a larger thickness of the support piece (3) abuts against the outer layer (2).

3. The double-layer composite fabric according to claim 1, wherein: The light-absorbing strip (4) is composed of several light-absorbing blocks, and a breathable channel is formed between adjacent light-absorbing blocks. The light-absorbing blocks are composed of several bamboo charcoal fibers.

4. The double-layer composite fabric according to claim 3, characterized in that: The tab (7) is integrally formed on the outer layer (2), the outer layer (2) is configured as a convex strip structure, and the width of the tab (7) is greater than the distance between adjacent support pieces (3).

5. The double-layer composite fabric according to claim 2, characterized in that: The outer layer (2) and the support sheet (3) are both woven from composite yarns, including bamboo charcoal yarn and polyester profiled yarn.

6. The double-layer composite fabric according to claim 5, characterized in that: The inner layer (1) is woven from polyester profiled yarn two, and the cross-sectional shape of both polyester profiled yarn one and polyester profiled yarn two is Y-shaped.

Images