Polyester filament geotextile for waterproof roll base

Abstract

The utility model provides a polyester filament geotextile for a waterproof roll base, and relates to the technical field of non-woven fabric manufacturing, in particular to the polyester filament geotextile for the waterproof roll base. The utility model is formed by needling and consolidating fiber filaments of which the cross sections are of special-shaped structures. And the section of the fiber filament is of an I-shaped structure or a [-shaped structure. The fiber filaments of the polyester filament geotextile for manufacturing the waterproof roll tire base are processed in three combination modes: processing is carried out by adopting independent I-shaped fiber filaments; the single [-shaped fiber filaments are adopted for processing, and the I-shaped fiber filaments and the [-shaped fiber filaments are mixed for processing. According to the technical scheme of the utility model, the problems of low product performance and higher manufacturing cost caused by small gaps among fibers and low colloid content after the polyester filament tire base cloth made of circular-section fibers in the prior art is impregnated with starch glue or a mixture of the starch glue and chemical glue are solved.

Description

Technical Field

[0001] The utility model discloses a polyester filament geotextile for a waterproof coiled material base, relates to the technical field of nonwoven fabric manufacturing, and particularly relates to a polyester filament geotextile for a waterproof coiled material base. Background Art

[0002] The polyester filament base fabric has high tensile strength, elongation, puncture resistance and tear resistance, and low thermal shrinkage. The modified asphalt waterproofing membrane made of it as the base fabric has excellent water resistance, heat resistance, and aging resistance. It has been widely used in waterproofing, moisture-proofing, and anti-seepage projects for roofs, underground, pools, and high-speed roads. The polyester filament base fabric is made of polyester filament geotextile impregnated with starch glue or a mixture of starch glue and chemical glue. The polyester filament geotextile currently used has a circular fiber cross-section, and the gaps between the fibers in the geotextile are small. When impregnated with starch glue or a mixture of starch glue and chemical glue, the content of starch glue or a mixture of starch glue and chemical glue is low, and the manufacturing cost is high.

[0003] In view of the problems existing in the above-mentioned prior art, it is very necessary to study and design a new type of polyester filament geotextile for waterproof roll base, so as to overcome the problems existing in the prior art. Summary of the invention

[0004] According to the above-mentioned prior art, the polyester filament base fabric made of circular cross-section fibers has small gaps between fibers, and after being impregnated with starch glue or a mixture of starch glue and chemical glue, the colloid content is low, resulting in low product performance and high manufacturing cost. A polyester filament geotextile for waterproof roll base is provided. The utility model mainly manufactures polyester filament base fabric through fiber filaments with special-shaped structures, increases the gaps between fibers, thereby increasing the colloid content in the base fabric after being impregnated with starch glue or a mixture of starch glue and chemical glue, thereby improving the tensile strength, puncture resistance and tear resistance of the base fabric, and reducing the manufacturing cost of the base fabric on the premise that the modified asphalt waterproof roll made of the base fabric has excellent water resistance, heat resistance and aging resistance.

[0005] The technical means adopted by the utility model are as follows:

[0006] A polyester filament geotextile for waterproof roll base is made of fiber filaments with a special-shaped cross-section structure through needle punching and consolidation;

[0007] Furthermore, the cross-section of the fiber filament is an "I"-shaped structure.

[0008] Furthermore, the lengths of the upper and lower horizontal lines of the “I”-shaped structure are 15-60 μm, and the height is 3-20 μm; the height of the vertical beam between the two horizontal lines is 10-40 μm, and the width is 3-20 μm.

[0009] Furthermore, the cross-section of the fiber filament may also be a "["-shaped structure.

[0010] Furthermore, the fiber filaments used to manufacture the polyester filament geotextile for the waterproof roll base are processed in three combination forms: processing with separate "I"-shaped fiber filaments; processing with separate "["-shaped fiber filaments; and processing with a mixture of "I"-shaped fiber filaments and "["-shaped fiber filaments.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. The polyester filament geotextile for the waterproof roll base provided by the utility model adopts shaped fiber filaments to make the base fabric, thereby increasing the space between the gaps between the fibers of the base fabric;

[0013] 2. The polyester filament geotextile for the waterproof roll base provided by the utility model increases the gap space between the base fabric fibers, so that the base fabric absorbs more starch glue or a mixture of starch glue and chemical glue, thereby improving the product characteristics and reducing the manufacturing cost.

[0014] In summary, the technical solution of the utility model solves the problem that the polyester filament base cloth made of circular cross-section fibers in the prior art has small gaps between the fibers and low colloid content after impregnation with starch glue or a mixture of starch glue and chemical glue, resulting in low product performance and high manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of fiber arrangement after laying the net in Example 1 of the utility model;

[0017] Figure 2 This is a schematic diagram of fiber arrangement after laying the web in Example 2 of the utility model;

[0018] Figure 3 This is a schematic diagram of fiber arrangement after laying the net in Example 3 of the utility model.

[0019] Figure 4 This is a schematic diagram of the utility model fiber filament cross section being an "I" shape;

[0020] Figure 5 The cross section of the fiber filament of the utility model is a schematic diagram of a "[" shape;

[0021] Figure 6 Schematic diagram of fiber arrangement in the prior art. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0026] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0027] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0028] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0029] Example 1

[0030] like Figure 1 , 4 -5, the utility model provides a polyester filament geotextile for waterproof roll base, which is made of fiber filaments with a special-shaped cross-section that are consolidated by needle punching; the polyester filament geotextile for waterproof roll base is impregnated with starch glue or a mixture of starch glue and chemical glue to make a polyester filament base fabric.

[0031] The cross section of the fiber filament is an "I" shaped structure.

[0032] The length of the upper and lower horizontal lines of the "I"-shaped structure is 15-60μm, and the height is 3-20μm; the height of the vertical beam between the two horizontal lines is 10-40μm, and the width is 3-20μm.

[0033] The fiber filaments of the polyester filament geotextile used as the base of the waterproof membrane are processed using separate "I"-shaped fiber filaments.

[0034] With the existing technology, the rubber content in the waterproofing roll base is 20-25%. With this embodiment, the rubber content can be increased by 3-5%. Under the same tensile strength, the weight of the polyester filament geotextile used for the waterproofing roll base can be reduced by 4-6%, which can reduce product costs.

[0035] Example 2

[0036] like Figure 2 As shown, (based on Example 1,) the utility model also provides a polyester filament geotextile for a waterproof roll base, which is processed using separate "["-shaped fiber filaments.

[0037] The lengths of the upper and lower horizontal lines of the “[”-shaped structure are 15-70 μm, and the height is 3-20 μm; the height of the vertical beam between the two horizontal lines is 10-40 μm, and the width is 3-20 μm.

[0038] With the existing technology, the rubber content in the waterproofing roll base is 20-25%. With this embodiment, the rubber content can be increased by 1-3%. Under the same tensile strength, the weight of the polyester filament geotextile used for the waterproofing roll base can be reduced by 2-4%, which can reduce product costs.

[0039] Example 3

[0040] like Figure 3 As shown, (based on Example 1,) the utility model also provides a polyester filament geotextile for a waterproof roll base, which is processed in a mixed form of "I"-shaped fiber filaments and "["-shaped fiber filaments.

[0041] With the existing technology, the rubber content in the waterproofing roll base is 20-25%. With this embodiment, the rubber content can be increased by 2-4%. Under the same tensile strength, the weight of the polyester filament geotextile used for the waterproofing roll base can be reduced by 3-5%, which can reduce product costs.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A polyester filament geotextile for waterproof roll base, characterized in that: The polyester filament geotextile used as the waterproof coiled material base is made of fiber filaments with a special-shaped cross-section that are consolidated through needle punching; The cross-section of the fiber filament is an "I"-shaped structure and a "["-shaped structure; The fiber filaments of the polyester filament geotextile used for the waterproof coiled material base are processed in three combined forms: processing with a single "I"-shaped fiber filament; processing with a single "["-shaped fiber filament; and processing with a mixture of "I"-shaped fiber filaments and "["-shaped fiber filaments.

2. The polyester filament geotextile for waterproof roll base according to claim 1, characterized in that: The length of the upper and lower horizontal beams of the "I"-shaped structure is 15-60 μm, and the height is 3-20 μm; the height of the vertical beam between the two horizontal beams is 10-40 μm, and the width is 3-20 μm.

3. The polyester filament geotextile for waterproof roll base according to claim 1, characterized in that: The length of the upper and lower horizontal sections of the "["-shaped structure is 15-70 μm, and the height is 3-20 μm; the height of the vertical beam between the two horizontal sections is 10-40 μm, and the width is 3-20 μm.

Images