CN219883446U - Broken twill composite geotextile - Google Patents

Abstract

The utility model provides a broken twill composite geotextile, which includes a base fabric and a non-woven fabric. The non-woven fabric is arranged on the base fabric. The base fabric is a broken twill woven fabric. The broken twill woven fabric includes a plurality of left twill weaves and a plurality of left twill weaves. The right twill weave, the left twill weave and the right twill weave are spaced apart, and multiple perforations are formed on the base fabric; the non-woven fabric is connected to the base fabric through thermal bonding, and the fibers of the non-woven fabric are heated, melted, penetrated and implanted into the perforations Inside. The utility model facilitates the uniform distribution of non-woven fabric fibers on the base fabric, forming an effective bonding compound and a stable structure.

Description

A broken twill composite geotextile

Technical field

The utility model relates to the field of geotextiles, specifically to a broken twill composite geotextile.

Background technique

As the application of composite geotextiles becomes more and more widespread, there are more and more composite types of woven geotextiles and non-woven geotextiles. As one of the common composite methods, thermal bonding has increasingly higher requirements on the pore size of the base fabric. Existing base fabrics are generally made of ordinary twill or plain weave. The base fabrics made of ordinary twill or plain weave have larger pore diameters. When compounded with non-woven geotextiles, the fibers of the non-woven fabrics are prone to knotting or knotting. A large amount of accumulation causes the non-woven fabric to be unable to be evenly distributed on the base fabric, which easily affects the composite tightness of the composite geotextile.

Utility model content

The purpose of this utility model is to provide a non-woven fabric fiber that can be evenly distributed on the base fabric to form a twill composite geotextile that is effectively bonded and composited and has a stable structure.

In order to achieve the above purpose, the utility model provides a broken twill composite geotextile, which includes a base fabric and a non-woven fabric. The non-woven fabric is arranged on the base fabric. The base fabric is a broken twill woven fabric. The broken twill woven fabric includes multiple A left twill weave and a plurality of right twill weaves are arranged at intervals, and multiple perforations are formed on the base fabric; the non-woven fabric is connected to the base fabric through thermal bonding, and the fibers of the non-woven fabric are heated After melting, it penetrates and is implanted into the piercing.

It can be seen from the above solution that by setting the base fabric of the broken twill weave fabric, perforations with smaller apertures are formed on the base fabric. On the one hand, it is beneficial to improve the stiffness of the base fabric and prevent slipping. On the other hand, there is no need for thermal bonding during thermal bonding. The fibers of the woven fabric can be penetrated and implanted into the perforations after being heated and melted, making it difficult to form tangles and knots. This helps the fibers to be evenly distributed on the base fabric, thereby achieving effective bonding and compounding, and improving the strength of the broken twill composite geotextile. Structural stability.

A further solution is that multiple left twill weaves and multiple right twill weaves are arranged cyclically at intervals along the weft direction.

A further solution is that the base fabric includes a first warp yarn, a second warp yarn, a third warp yarn, a fourth warp yarn and a plurality of weft yarns. The first warp yarn and the second warp yarn are interlaced with the weft yarn to form a right twill weave, and the third warp yarn and the third warp yarn are interlaced with the weft yarn. The four warp yarns are all interlaced with the weft yarns to form a left twill weave. The right twill weave and the left twill weave are cyclically arranged along the weft direction.

A further solution is that the weft yarn is made of polypropylene split yarn, and the first warp yarn, the second warp yarn, the third warp yarn and the fourth warp yarn are all made of polypropylene flat yarn material.

A further solution is that a plurality of left twill weaves and a plurality of right twill weaves can be arranged cyclically at radial intervals.

A further solution is that the fibers of the non-woven fabric include short fibers and/or filaments.

Description of the drawings

Figure 1 is a side view of an embodiment of the present utility model.

Figure 2 is a diagram of the broken twill structure of the base fabric in the embodiment of the present invention.

Figure 3 is a structural diagram of the broken twill structure of the base fabric in the embodiment of the present utility model.

Figure 4 is a diagram of a common twill weave of base fabric in the prior art.

Figure 5 is a common twill structural diagram of base fabric in the prior art.

The utility model will be further described below in conjunction with the accompanying drawings and examples.

Detailed ways

Referring to Figures 1 to 3, this embodiment provides a broken twill composite geotextile, which includes a base fabric 1 and a non-woven fabric 2. The non-woven fabric 2 is arranged on the base fabric 1 and is preferably connected to the base fabric 1 by thermal bonding. Together.

The base fabric 1 is a broken twill woven fabric, and the broken twill woven fabric includes a plurality of left twill weaves and a plurality of right twill weaves, and the plurality of left twill weaves and multiple right twill weaves are arranged at intervals. A plurality of perforations 16 are formed between the weft yarns 11 and warp yarns of the base fabric 1.

The fibers of the non-woven fabric 2 may be short fibers, filaments, or a combination of short fibers and filaments. During thermal bonding, the fibers of the non-woven fabric 2 will penetrate and be implanted into the perforations 16 of the base fabric 1 after being heated and melted, thereby achieving a fixed connection between the non-woven fabric 2 and the base fabric 1 .

In this embodiment, multiple left twill weaves and multiple right twill weaves are cyclically arranged at intervals along the weft direction to form a warp broken twill structure, and the break between the left twill weave and the right twill weave is parallel to the warp yarns.

In this embodiment, a broken twill weave with a warp and weft density of 63*47, 2/2 is used as an example to make the base fabric 1. The base fabric 1 includes a first warp yarn 12, a second warp yarn 13, a third warp yarn 14, a fourth warp yarn 15 and multiple Weft yarn 11, the first warp yarn 12 and the second warp yarn 13 are interlaced with the weft yarn 11 two up and two down, forming a right twill weave; the third warp yarn 14 and the fourth warp yarn 15 are both interwoven with the weft yarn 11 up and down, forming a right twill weave. The left twill weave, the right twill weave and the left twill weave are cyclically arranged at intervals along the weft direction, and are interlaced between the second warp yarn 13 and the third warp yarn 14. The warp and weft weave points on the second warp yarn 13 and the third warp yarn 14 are exactly opposite. .

The weft yarn 11 is made of FT3300dtex polypropylene split yarn, and the first warp yarn 12, the second warp yarn 13, the third warp yarn 14 and the fourth warp yarn 15 are all made of TY2200dtex polypropylene flat yarn.

The effective pore diameter of the perforations 16 of the broken twill base fabric 1 of this embodiment was measured using the wet sieving method and the dry sieving method respectively: the wet sieving aperture is generally 0.24mm, and the dry sieving aperture of the perforations 16 is generally 0.42mm.

In other embodiments, multiple left twill weaves and multiple right twill weaves can also be arranged cyclically at radial intervals to form a weft broken twill structure, and the break between the left twill weave and the right twill weave is parallel to the weft yarn.

Referring to Figure 4 and Figure 5, the base fabric 10 is made of an ordinary twill with a warp and weft density of 63*47 and 2/2. The warp yarn of the base fabric 10 is made of TY2200dtex polypropylene flat yarn, and the weft yarn of the base fabric 10 is made of FT3300dtex. Made of polypropylene split film yarn.

The effective pore diameter of the perforations of the ordinary twill base fabric 10 was measured by the wet sieving method and the dry sieving method respectively: the wet sieving aperture is generally 0.47mm, and the dry sieving aperture of the perforation is generally 0.85mm.

It can be seen from the above that through comparison of test data, under the premise of the same warp and weft density, the wet sieve aperture of the broken twill base fabric 1 is 48.9% smaller than the wet sieve aperture of the ordinary twill base fabric 10, and the dry sieve aperture of the broken twill base fabric 1 The dry screen aperture is 50.1% smaller than that of ordinary twill base fabric 10, that is, the perforation aperture 16 of broken twill base fabric 1 is smaller than the perforation aperture of ordinary twill, making the stiffness of broken twill base fabric 1 higher and preventing warp and weft yarns 11 Slippery, it is convenient for the fibers of the non-woven fabric 2 to penetrate and be implanted into the broken twill base fabric 1 after heating and melting, and the fibers can be evenly fixed on the broken twill base fabric 1, thereby forming an effective bonding compound, and the broken twill composite geotextile The structure is more stable and the service life is longer.

According to actual production tests, non-woven fabrics cannot be directly thermally bonded to ordinary twill base fabrics or plain weave base fabrics because the pore diameter is too large. If bonding is required, an adhesive layer is generally required between the two and the adhesive layer is used. Fix the non-woven fabric on the ordinary twill base fabric. In this embodiment, there is no need to provide an adhesive layer, and the non-woven fabric can be evenly fixed on the twill base fabric 1 by utilizing the characteristics of heating and melting, which has the advantages of cost saving and being more environmentally friendly.

In summary, it can be seen that the present utility model forms perforations with smaller apertures on the base fabric by arranging the base fabric of the broken twill woven fabric. On the one hand, it is beneficial to improve the stiffness of the base fabric and prevent slipping. On the other hand, it is beneficial to improve the stiffness of the base fabric during thermal bonding. , the fibers of the non-woven fabric can be penetrated and implanted into the perforations after being heated and melted, which is not easy to form tangles and knots, and is conducive to the even distribution of fibers on the base fabric, thereby achieving effective bonding and compounding, and improving the broken twill composite geotechnical Structural stability of the cloth.

Finally, it should be emphasized that the above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Within the spirit and principles of this utility model, any modifications, equivalent substitutions, improvements, etc. shall be included in the protection scope of this utility model.

Claims (6)

1. A broken twill composite geotextile, including a base fabric and a non-woven fabric, the non-woven fabric is arranged on the base fabric, and is characterized by: The base fabric is a broken twill woven fabric. The broken twill woven fabric includes a plurality of left twill weaves and a plurality of right twill weaves. The left twill weave and the right twill weave are arranged at intervals. There are formed on the base fabric multiple piercings; The non-woven fabric is connected to the base fabric by thermal bonding, and the fibers of the non-woven fabric are heated and melted, then penetrated and implanted into the perforation. 2. The broken twill composite geotextile according to claim 1, characterized in that: A plurality of left twill weaves and a plurality of right twill weaves are arranged cyclically at intervals along the weft direction. 3. The broken twill composite geotextile according to claim 2, characterized in that: The base fabric includes a first warp yarn, a second warp yarn, a third warp yarn, a fourth warp yarn and a plurality of weft yarns, and the first warp yarn and the second warp yarn are interlaced with the weft yarn to form the right twill weave, The third warp yarn and the fourth warp yarn are interlaced with the weft yarn to form the left twill weave. 4. The broken twill composite geotextile according to claim 3, characterized in that: The weft yarn is made of polypropylene split yarn, and the first warp yarn, the second warp yarn, the third warp yarn and the fourth warp yarn are all made of polypropylene flat yarn material. 5. The broken twill composite geotextile according to claim 1, characterized in that: A plurality of left twill weaves and a plurality of right twill weaves may be arranged cyclically at radial intervals. 6. The broken twill composite geotextile according to claim 1, characterized in that: The fibers of the non-woven fabric include short fibers and/or filaments.