Waterproof wool knit fabric
By using a three-layer waterproof structure and a water-resistant and breathable pore design in the oblique perforation layer, the problem of balancing waterproofness and breathability in wool knitted fabrics is solved, achieving a highly efficient waterproof and breathable effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING SHANGMU CLOTHING CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-14
AI Technical Summary
While existing wool knitted fabrics improve waterproof performance, they are difficult to maintain breathability. Traditional waterproof layers significantly reduce breathability, and microporous laminates, although breathable, have limited waterproof performance, failing to balance waterproof and breathability.
It adopts a three-layer waterproof structure, including a middle water-barrier layer, an outer waterproof and breathable layer, and an inner waterproof and breathable layer. The vent holes of the water-barrier layer are designed as inclined holes extending from top to bottom. Combined with the arrangement of the vent hole groups, it ensures both waterproof performance and breathability.
It achieves high breathability while ensuring waterproof performance, avoiding the problem of decreased breathability caused by the increase of traditional waterproof layer thickness, and rainwater can be easily discharged.
Smart Images
Figure CN224490315U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wool fabrics, and more particularly to a waterproof wool knitted fabric. Background Technology
[0002] Wool knitted fabric is made of wool fibers and has many advantages, such as good warmth retention, breathability, and moisture absorption. However, the breathability of wool knitted fabric limits its waterproof performance.
[0003] In existing technologies, to improve the waterproof performance of wool knitted fabrics, a waterproof layer is usually laminated onto the wool fabric. Traditional waterproof layers are made of PU, PVC, and rubber, etc. These waterproof structures form a continuous, non-porous film on the fabric surface, which significantly reduces or even completely blocks breathability. Water vapor cannot effectively pass through this barrier, resulting in the accumulation of internal moisture when worn, causing a stuffy feeling.
[0004] Another type of microporous laminated film layer, such as PTEE film and PU microporous film, relies on tiny pores (much smaller than water droplets but larger than water vapor molecules) to achieve breathability. They reduce the breathability of wool but retain a certain degree of breathability. This type of fabric is usually called a waterproof and breathable layer, but its breathability is certainly not as good as untreated wool. Moreover, in order to improve its waterproof effect, the thicker the waterproof and breathable layer, the better the overall waterproof effect of the fabric, but the worse its breathability. In other words, it is impossible to balance the waterproof performance and breathability of wool knitted fabrics using existing technology. Utility Model Content
[0005] The purpose of this invention is to provide a waterproof wool knitted fabric that is both waterproof and breathable.
[0006] The technical solution for this utility model of waterproof wool knitted fabric is as follows:
[0007] A waterproof wool knitted fabric includes a wool fiber outer layer, a wool fiber inner layer, and a waterproof layer disposed between the wool fiber outer layer and the wool fiber inner layer. The waterproof layer includes an intermediate water-barrier layer and an outer waterproof and breathable layer disposed between the outer side of the intermediate water-barrier layer and the wool fiber outer layer. The waterproof layer also includes an inner waterproof and breathable layer disposed between the intermediate water-barrier layer and the inner side of the wool fibers. The intermediate water-barrier layer has a plurality of water-barrier breathable holes distributed on it. The water-barrier breathable holes are oblique holes that gradually extend from top to bottom toward the outer waterproof and breathable layer. The upper opening of the water-barrier breathable holes is disposed on the inner surface of the intermediate water-barrier layer, and the lower opening of the water-barrier breathable holes is disposed on the outer surface of the intermediate water-barrier layer.
[0008] Furthermore, the thickness of the intermediate water-barrier layer is greater than the sum of the thicknesses of the inner waterproof and breathable layer and the outer waterproof and breathable layer.
[0009] Furthermore, the vent holes of the waterproof layer are distributed and arranged in multiple groups of vent holes arranged sequentially in the vertical direction, and each group of vent holes includes multiple vent holes of the waterproof layer extending in the horizontal direction.
[0010] Furthermore, the vent holes of the waterproof layer are distributed and arranged in multiple groups of vent holes arranged sequentially in the vertical direction, and each group of vent holes includes multiple vent holes of the waterproof layer extending in the horizontal direction.
[0011] Furthermore, two adjacent groups of vents in the vertical direction are called the upper vent group and the lower vent group, respectively, and the corresponding water-proof layer vent of the lower vent group is located between the corresponding two water-proof layer vents of the upper vent group.
[0012] Furthermore, the height of the upper opening of the vent hole in the waterproof layer of the lower vent hole group is not lower than the height of the lower opening of the vent hole in the waterproof layer of the upper vent hole group.
[0013] The beneficial effects of this technical solution are as follows: In this utility model, the waterproof layer comprises a three-layer structure. The waterproof performance of the wool knitted fabric is achieved through an outer waterproof and breathable layer, a middle water-resistant layer, and an inner waterproof and breathable layer. For example, when there is water on the outside, the outer waterproof and breathable layer provides the first layer of waterproofing. Even if a small amount of rainwater enters, the water-resistant layer's vents, which gradually extend downwards towards the outer waterproof and breathable layer, provide the second layer of waterproofing. At this point, virtually no rainwater can reach the upper opening of the water-resistant layer's vents. Even if rainwater does reach the upper opening of the water-resistant layer's vents, the unpressurized rainwater is unlikely to penetrate the entire waterproof wool knitted fiber through the inner waterproof and breathable layer. Gas, however, can penetrate the entire waterproof wool knitted fabric through the outer waterproof and breathable layer, the water-resistant layer's vents, and the inner waterproof and breathable layer, ensuring the breathability of the waterproof wool knitted fabric.
[0014] Furthermore, in this invention, the waterproof layer ensures waterproof performance through a three-layer structure. Due to the intervention of the water-proof and breathable pores in the oblique hole structure, the waterproof performance of the fabric is guaranteed. Therefore, the outer waterproof and breathable layer and the inner waterproof and breathable layer do not need to be too thick. For example, they can be thinner than the middle water-proof layer. This ensures the breathability of the outer waterproof and breathable layer and the inner waterproof and breathable layer, thereby achieving a balance between waterproof and breathability. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of a waterproof wool knitted fabric of the present invention;
[0016] Figure 2 for Figure 1 Side view of the middle water layer;
[0017] Figure 3This is a schematic diagram of the structure of Embodiment 2 of a waterproof wool knitted fabric of this utility model;
[0018] In the diagram: 1. Inner layer of wool fibers; 2. Upper opening of the vent in the waterproof layer; 3. Lower opening of the vent in the waterproof layer; 4. Inner waterproof and breathable layer; 5. Ventilation holes in the waterproof layer; 6. Middle waterproof layer; 7. Outer waterproof and breathable layer; 8. Wool fiber surface layer; 9. Perforated breathable layer. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0021] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0022] The features and performance of this utility model will be further described in detail below with reference to the embodiments.
[0023] A specific embodiment 1 of the waterproof wool knitted fabric of this utility model: as follows Figures 1-2 As shown:
[0024] It includes a wool fiber outer layer 8, a wool fiber inner layer 1, and a waterproof layer disposed between the wool fiber outer layer 3 and the wool fiber inner layer 1.
[0025] The waterproof layer consists of an intermediate water-barrier layer 6 and an inner waterproof and breathable layer 4 and an outer waterproof and breathable layer 7 disposed on both sides of the intermediate water-barrier layer 6. The thickness of the intermediate water-barrier layer 6 is greater than the thickness of the inner waterproof and breathable layer 4, and the thickness of the intermediate water-barrier layer 6 is also greater than the thickness of the outer waterproof and breathable layer 7. The thickness of the intermediate water-barrier layer 4 is greater than the sum of the thicknesses of the inner waterproof and breathable layer 4 and the outer waterproof and breathable layer 7. In this embodiment, the thickness of the intermediate water-barrier layer is 0.5~1.2mm.
[0026] In this embodiment, the intermediate water-barrier layer 6 can be a PU or PVC layer, and the inner waterproof and breathable layer 4 and the outer waterproof and breathable layer 7 can be a PU microporous membrane, a PTFE membrane, or a TPU membrane, etc.
[0027] Multiple waterproof vent holes 5 are distributed on the intermediate waterproof layer. These vent holes 5 are inclined holes that gradually extend downwards towards the outer waterproof and breathable layer. The upper opening 2 of each vent hole is located on the inner surface of the intermediate waterproof layer, and the lower opening 3 is located on the outer surface. The waterproof vent holes are arranged in multiple groups along the vertical direction, each group including multiple vent holes extending horizontally. Two adjacent groups of vent holes in the vertical direction are referred to as the upper vent hole group and the lower vent hole group, respectively. The corresponding waterproof vent hole in the lower vent hole group is located between the corresponding two waterproof vent holes in the upper vent hole group. The height of the upper opening of the waterproof vent hole in the lower vent hole group is not lower than the height of the lower opening of the waterproof vent hole in the upper vent hole group.
[0028] In this embodiment, the waterproofness of the waterproof wool knitted fabric refers to its resistance to rainwater. When rainwater seeps through the surface of the wool fibers and comes into contact with the outer waterproof and breathable layer, a small amount of rainwater will penetrate the outer waterproof and breathable layer and enter the vents of the waterproof layer. Since the vents of the waterproof layer have an oblique hole structure, the pressure of rainwater inward can be effectively reduced. Even if the rainwater reaches the upper opening of the vents of the waterproof layer, it is difficult for the rainwater to pass through the inner waterproof and breathable layer again, thus ensuring the waterproof performance of the fabric. When the user reaches a rain-free area, the user only needs to shake the clothes vigorously to shake out the water in the vents of the waterproof layer through the outer waterproof and breathable layer.
[0029] Example 2 of a waterproof wool knitted fabric Figure 3 As shown:
[0030] The difference between Example 2 and Example 1 is that in this example, the outer waterproof and breathable layer 7 is provided with breathable layer perforations 9 that correspond to and communicate with the lower end openings 3 of the water-proof layer's breathable holes. The outer waterproof and breathable layer 7 facilitates the composite bonding of the wool fiber surface layer, and the breathable layer perforations 9 make it easier for rainwater to flow out. Thus, there is no need to shake the clothes, and water will not accumulate in the water-proof layer's breathable holes.
[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.
Claims
1. A waterproof wool knitted fabric, comprising a wool fiber outer layer, a wool fiber inner layer, and a waterproof layer disposed between the wool fiber outer layer and the wool fiber inner layer, characterized in that: The waterproof layer includes an intermediate water-barrier layer and an outer waterproof and breathable layer disposed between the outer side of the intermediate water-barrier layer and the surface of the wool fibers. The waterproof layer also includes an inner waterproof and breathable layer disposed between the intermediate water-barrier layer and the inner side of the wool fibers. The intermediate water-barrier layer has multiple water-barrier breathable holes distributed on it. The water-barrier breathable holes are inclined holes that gradually extend from top to bottom toward the outer waterproof and breathable layer. The upper opening of the water-barrier breathable holes is located on the inner surface of the intermediate water-barrier layer, and the lower opening of the water-barrier breathable holes is located on the outer surface of the intermediate water-barrier layer.
2. The waterproof wool knitted fabric according to claim 1, characterized in that: The thickness of the intermediate water-barrier layer is greater than the sum of the thicknesses of the inner waterproof and breathable layer and the outer waterproof and breathable layer.
3. The waterproof wool knitted fabric according to claim 1, characterized in that: The outer waterproof and breathable layer is provided with perforations that correspond to the lower openings of the vent holes in the waterproof layer.
4. The waterproof wool knitted fabric according to any one of claims 1 to 3, characterized in that: The vent holes of the waterproof layer are distributed and arranged in multiple groups of vent holes arranged sequentially in the vertical direction, and each group of vent holes includes multiple vent holes of the waterproof layer extending in the horizontal direction.
5. The waterproof wool knitted fabric according to claim 4, characterized in that: Two adjacent groups of vents in the vertical direction are called the upper vent group and the lower vent group, respectively. The corresponding water-proof vent of the lower vent group is located between the corresponding two water-proof vents of the upper vent group.
6. The waterproof wool knitted fabric according to claim 5, characterized in that: The height of the upper opening of the vent hole in the waterproof layer of the lower vent hole group shall not be lower than the height of the lower opening of the vent hole in the waterproof layer of the upper vent hole group.