Anti-hydrolysis flat yarn dry net convenient to clean
By using hydrolysis-resistant polyester flat yarns and aramid fiber reinforcing ribs in papermaking dry wire and covering the surface with a polyurethane layer, the problem of easy damage to papermaking dry wire in high temperature and high humidity environments is solved, and the tear resistance and service life are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENQIU COUNTY SHANCHENG NETWORK IND CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-14
AI Technical Summary
Existing papermaking dry wires are prone to hydrolysis, aging, and breakage in high-temperature and high-humidity environments, resulting in severe edge wear, high maintenance costs, long downtime, and short service life.
It uses hydrolysis-resistant polyester flat yarn and aramid fiber reinforcement, with a polyurethane layer covering the surface, and is connected to the frame with hot melt adhesive strips to form a flat yarn dry mesh structure.
It slows down hydrolytic aging, improves edge tear resistance, extends service life, and reduces maintenance costs and downtime.
Smart Images

Figure CN224494728U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of flat wire dry net technology, and in particular relates to a hydrolysis-resistant flat wire dry net that is easy to clean. Background Technology
[0002] Existing papermaking dry wires are mostly woven from polyester round or flat yarns. Operating in high-temperature and high-humidity environments for extended periods, they are prone to hydrolysis, aging, and breakage. Wear is particularly severe at edges and seams. Once localized damage occurs, the entire sheet must be replaced, resulting in high maintenance costs and prolonged downtime. Furthermore, traditional polyester yarns have poor hydrolysis resistance and a short service life, making them unsuitable for the high-speed, high-humidity, and high-temperature operating requirements of modern papermaking machines. Utility Model Content
[0003] To address the problems existing in the prior art, this utility model provides a method using hydrolysis-resistant polyester flat yarn with a polyurethane layer on the surface to effectively delay hydrolysis aging, and featuring woven aramid reinforcing ribs to enhance edge tear resistance and improve overall tear resistance.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-clean hydrolysis-resistant flat yarn dry net, comprising a flat yarn dry net layer and a reinforcing rib layer, wherein both the flat yarn dry net layer and the reinforcing rib layer are woven from warp and weft yarns, and the flat yarn dry net layer has an inclined 45° structure, while the reinforcing rib layer is oriented at 0°. A frame is provided around the flat yarn dry net layer and the reinforcing rib layer, and the frame is connected by hot melt adhesive strips.
[0005] Preferably, the surface of the flat wire dry mesh layer is provided with a polyurethane protective layer with a thickness of 10-30μm.
[0006] Preferably, the reinforcing rib layer is made of aramid fiber flat yarn.
[0007] Preferably, the hot melt adhesive strip is a pre-formed hot melt adhesive strip.
[0008] Compared with the prior art, the beneficial effects of this utility model are: it uses hydrolysis-resistant polyester flat yarn with a polyurethane layer on the surface, which effectively delays hydrolysis aging; it is equipped with woven aramid reinforcing ribs to improve the tear resistance of the edges and enhance the overall tear resistance. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model.
[0010] Figure 2 This is a schematic diagram of the reinforcing rib structure of this utility model. Detailed Implementation
[0011] 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, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0012] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example
[0013] See appendix Figure 1-2 As shown, an easy-to-clean hydrolysis-resistant flat yarn dry net includes a flat yarn dry net layer 1 and a reinforcing rib layer 4. Both the flat yarn dry net layer 1 and the reinforcing rib layer 4 are made of interwoven warp and weft yarns. The flat yarn dry net layer 1 has an inclined 45° structure, and the reinforcing rib layer 4 has a 0° orientation. A frame 2 is provided around the flat yarn dry net layer 1 and the reinforcing rib layer 4. The frame 2 is connected by a hot melt adhesive strip 3.
[0014] Preferably, the surface of the flat wire dry mesh layer 1 is provided with a polyurethane protective layer with a thickness of 10-30μm.
[0015] Preferably, the reinforcing rib layer 4 is an aramid fiber flat filament.
[0016] Preferably, the hot melt adhesive strip 3 is a hot melt adhesive strip that is installed.
[0017] Working principle: It uses hydrolysis-resistant polyester flat yarn with a polyurethane coating to effectively delay hydrolysis aging. It is equipped with woven aramid reinforcing ribs to improve the tear resistance of the edges and enhance the overall tear resistance.
[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.
[0019] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A hydrolysis-resistant flat wire mesh that is easy to clean, comprising a flat wire mesh layer and a reinforcing rib layer, characterized in that: Both the flat yarn dry mesh layer and the reinforcing rib layer are made of interwoven warp and weft yarns. The flat yarn dry mesh layer has an inclined 45° structure, and the reinforcing rib layer has a 0° angle in four directions. The flat yarn dry mesh layer and the reinforcing rib layer are surrounded by a frame, which is connected by hot melt adhesive strips.
2. The easy-to-clean, hydrolysis-resistant flat wire dryer according to claim 1, characterized in that: The surface of the flat wire dry mesh layer is provided with a polyurethane protective layer with a thickness of 10-30μm.
3. The easy-to-clean, hydrolysis-resistant flat wire dryer according to claim 1, characterized in that: The reinforcing rib layer is made of aramid fiber flat yarn.
4. The easy-to-clean, hydrolysis-resistant flat wire dryer according to claim 1, characterized in that: The hot melt adhesive strip is for the application and installation of hot melt adhesive strips.