Waterproof antistatic knitted fabric
By using the first knitted fabric layer knitted with antistatic yarn in the waterproof fabric, the PTFE film layer with microporous structure and the DWR coating with drainage characteristics, combined with the hydrophobic layer, the problem of poor breathability of existing waterproof fabrics is solved, and the problem of poor breathability of existing waterproof fabrics is achieved. Good waterproof and breathable and anti-static properties ensure body temperature and comfort when clothing is not changed in time.
Patent Information
- Application Number
- CN202420313088.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-20
AI Technical Summary
The existing waterproof fabrics have poor breathability and cannot effectively prevent moisture from penetrating when clothes cannot be changed in time, affecting body temperature and comfort.
A structure is adopted including a first knitted fabric layer, a PTFE film layer, a second knitted fabric layer and a DWR coating, wherein the first knitted fabric layer is knitted from antistatic yarn, the PTFE film layer has a microporous structure, and the DWR coating has drainage Characteristics, the hydrophobic layer is used to improve waterproofing performance.
It achieves good waterproof, breathable and anti-static properties, while improving windproof and warmth effects, ensuring that the body temperature and comfort will not be affected when clothes are not changed in time.
Smart Images
Figure CN222201922U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of textiles, in particular to a waterproof and antistatic knitted fabric. Background Art
[0002] In modern life, the clothes we wear every day are varied and have multiple functions. People are more and more demanding in choosing clothes. When people wear clothes, they are easy to get wet by water and cannot be changed in time. Especially in winter, it will affect body temperature and cause discomfort.
[0003] In order to solve this problem, the utility model patent "A waterproof fabric" with the publication number "CN219096150U" records: including a cotton base layer, a nylon surface layer is arranged on the cotton base layer, a bonding layer is arranged between the cotton base layer and the nylon surface layer, the bonding layer is interwoven into the cotton base layer and the nylon surface layer on both sides, and a TPU film layer is arranged in the middle of the bonding layer. By combining the TPU film layer with the organic fluorine resin layer, water in life can be effectively spun, thereby avoiding the discomfort of the human body caused by the inability to change clothes in time.
[0004] However, in the above utility model patent, although the TPU film can be waterproof, since it is a fully dense material without gaps, the resulting fabric has poor air permeability. Utility Model Content
[0005] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a waterproof and antistatic knitted fabric.
[0006] In order to achieve the above technical effects, the utility model adopts the following scheme:
[0007] A waterproof and antistatic knitted fabric comprises a first knitted fabric layer, a PTFE membrane layer, a second knitted fabric layer and a DWR coating, wherein the first knitted fabric layer is arranged on the inner side, the PTFE membrane layer is arranged on the outer side of the first knitted fabric layer, the second knitted fabric layer is arranged on the outer side of the PTFE membrane layer, the DWR coating is arranged on the outer side of the second knitted fabric layer, and the woven yarn of the first knitted fabric layer is an antistatic yarn.
[0008] A preferred technical solution, the antistatic yarn includes a core yarn, a conductive yarn and a thermal insulation yarn, wherein there are two conductive yarns and two thermal insulation yarns, the two conductive yarns and the two thermal insulation yarns are alternately distributed around the core yarn, and the two conductive yarns and the two thermal insulation yarns are spirally wound around the core yarn.
[0009] According to a preferred technical solution, a hydrophobic layer is provided on the outer side of the DWR coating.
[0010] According to a preferred technical solution, the hydrophobic layer comprises a hydrophobic polyurethane coating.
[0011] According to a preferred technical solution, the hydrophobic layer comprises a third knitted fabric layer having hydrophobicity, and the knitting yarn of the third knitted fabric layer is spandex.
[0012] Compared with the prior art, the beneficial effects are:
[0013] The utility model has a simple structure and is easy to use. The first knitted fabric layer is woven with antistatic yarn so that the inner side of the utility model has antistatic properties. In addition, the waterproof performance of the utility model is improved by the PTFE membrane layer. The PTFE membrane layer has pores and the size of the pores is smaller than the size of water molecules and larger than the size of gas molecules. Therefore, it has good air permeability while having a waterproof function. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the layer mechanism of the utility model;
[0015] Figure 2 It is a cross-sectional schematic diagram of the antistatic yarn in the utility model.
[0016] Figure numerals: 1. first knitted fabric layer; 2. PTFE membrane layer; 3. second knitted fabric layer; 4. DWR coating; 5. hydrophobic layer; 6. core yarn; 7. conductive yarn; 8. thermal insulation yarn. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0018] A waterproof and antistatic knitted fabric comprises a first knitted fabric layer 1, a PTFE membrane layer 2, a second knitted fabric layer 3 and a DWR coating 4, wherein the first knitted fabric layer 1 is arranged on the inner side, the PTFE membrane layer 2 is arranged on the outer side of the first knitted fabric layer 1, the second knitted fabric layer 3 is arranged on the outer side of the PTFE membrane layer 2, the DWR coating 4 is arranged on the outer side of the second knitted fabric layer 3, and the woven yarn of the first knitted fabric layer 1 is antistatic yarn.
[0019] The DWR coating 4 has the property of water drainage and can effectively block the penetration of water. It plays a waterproof role in the utility model. The PTFE film layer 2 utilizes the pore-forming property of polytetrafluoroethylene plastic resin and is made of a microporous film by a biaxial stretching method. The surface of the film can reach more than one billion micropores per square centimeter. The diameter of each micropore (0.1μm-0.5μm) is hundreds of times smaller than the diameter of a water molecule (20μm-100μm) and tens of thousands of times larger than a water vapor molecule (0.0003μm-0.0004μm), so that water vapor can pass through, but water droplets cannot pass through. This microporous structure can achieve excellent waterproof and breathable functions; in addition, because the pores are extremely small and arranged in irregular longitudinal bends, wind cannot pass through, so it has the characteristics of windproof and warmth retention. The first knitted fabric layer 1 is made of antistatic yarn by knitting and has antistatic properties.
[0020] A preferred technical solution, the antistatic yarn includes a core yarn 6, a conductive yarn 7 and a thermal insulation yarn 8, wherein there are two conductive yarns 7 and two thermal insulation yarns 8, and the two conductive yarns 7 and the two thermal insulation yarns 8 are alternately distributed around the core yarn 6, and the two conductive yarns 7 and the two thermal insulation yarns 8 are spirally wound around the core yarn 6.
[0021] The core yarn 6 adopts the existing technology, such as polyester or nylon, and the conductive yarn 7 and the thermal insulation yarn 8 both adopt the existing technology. The conductive yarn 7 plays an anti-static role, and the thermal insulation yarn 8 plays a thermal insulation performance.
[0022] According to a preferred technical solution, a hydrophobic layer 5 is provided on the outer side of the DWR coating 4 .
[0023] The hydrophobic property of the hydrophobic layer 5 prevents rainwater from adhering to the surface of the fabric, thereby further improving the waterproof property.
[0024] According to a preferred technical solution, the hydrophobic layer 5 comprises a hydrophobic polyurethane coating.
[0025] According to a preferred technical solution, the hydrophobic layer 5 comprises a third knitted fabric layer having hydrophobicity, and the knitting yarn of the third knitted fabric layer is spandex.
[0026] Spandex has high elastic properties and has high water transport properties.
[0027] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.
[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0029] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.
Claims
1. A waterproof and antistatic knitted fabric, characterized in that: The invention comprises a first knitted fabric layer (1), a PTFE membrane layer (2), a second knitted fabric layer (3) and a DWR coating (4); the first knitted fabric layer (1) is arranged on the inner side, the PTFE membrane layer (2) is arranged on the outer side of the first knitted fabric layer (1), the second knitted fabric layer (3) is arranged on the outer side of the PTFE membrane layer (2), the DWR coating (4) is arranged on the outer side of the second knitted fabric layer (3), and the woven yarn of the first knitted fabric layer (1) is antistatic yarn.
2. The waterproof and antistatic knitted fabric according to claim 1, characterized in that: The antistatic yarn comprises a core yarn (6), a conductive yarn (7) and a thermal insulation yarn (8), wherein the conductive yarn (7) and the thermal insulation yarn (8) are in two pieces, respectively, and the two conductive yarns (7) and the two thermal insulation yarns (8) are alternately distributed around the core yarn (6), and the two conductive yarns (7) and the two thermal insulation yarns (8) are both spirally wound around the core yarn (6).
3. The waterproof and antistatic knitted fabric according to claim 1, characterized in that: A hydrophobic layer (5) is provided on the outer side of the DWR coating (4).
4. The waterproof and antistatic knitted fabric according to claim 3, characterized in that: The hydrophobic layer (5) comprises a hydrophobic polyurethane coating.
5. The waterproof and antistatic knitted fabric according to claim 3, characterized in that: The hydrophobic layer (5) comprises a third knitted fabric layer having hydrophobicity, and the knitting yarn of the third knitted fabric layer is spandex.