WO2023087563A1

WO2023087563A1 - Artificial turf

Info

Publication number: WO2023087563A1
Application number: PCT/CN2022/077361
Authority: WO
Inventors: 秦春霞
Original assignee: 江苏纵横优仪人造草坪有限公司
Priority date: 2021-11-16
Filing date: 2022-02-23
Publication date: 2023-05-25
Also published as: CN216765475U; EP4435183A1

Abstract

Disclosed in the present utility model is artificial turf, comprising a base cloth, artificial grass yarns tufted on the base cloth, and a bonding layer coated on the base cloth. The bonding layer is provided with water permeable holes formed by blowing of a blowing device. The artificial turf prepared in the present utility model has excellent water permeability, and a glue coating surface of the base cloth does not need to be pierced during production, such that the damage of piercing to the structure of the artificial turf is avoided, the artificial turf can be effectively prevented from loosening and falling off, and the service life of the artificial turf is prolonged.

Description

artificial turf

technical field

The utility model relates to the technical field of artificial turf, in particular to an artificial turf.

Background technique

Artificial turf is widely used in various places such as sports fields, landscaping, and home decoration because of its exquisite and neat appearance, excellent performance, long service life, and low maintenance costs. Artificial turf can be divided into injection molding artificial turf and woven artificial turf according to the production process. The production method of injection molding artificial turf is to use the injection molding process to extrude the plastic particles in the mold at one time, and bend the lawn by bending technology, so that the grass blades are arranged at equal distances and equal amounts, and the height of the grass blades is completely uniform. The production method of woven turf is to implant grass-like synthetic fibers into the woven base cloth, and coat the back with a fixed coating to form artificial turf. At present, most commercially available woven artificial turf base fabrics are woven with flat warp threads and weft threads, and the distance between warp threads and weft threads is relatively small. After the adhesive is cured, a sealed coating is formed, resulting in low water permeability of the woven artificial turf, which affects the drainage performance of the artificial turf. The rubberized surface of the base cloth is perforated, and the perforation will destroy the structure of the woven artificial turf, causing the artificial grass filaments near the perforation to loosen and fall off, which affects the appearance and service life of the woven artificial turf.

Utility model content

In view of this, the utility model provides an artificial lawn to solve the above-mentioned existing problems.

The technical scheme that the utility model solves its technical problem adopts is:

A kind of artificial lawn, comprises base cloth, the artificial turf filament tufted on said base cloth, and the bonding layer that is coated on said base cloth, is provided with on said bonding layer and is blown by blowing device formed permeable holes.

Further, the base cloth is provided with pinholes formed by tufting the artificial turf, and one end of the artificial turf passes through the pinholes to form a protrusion and is in contact with the bonding layer.

Further, the material of the base cloth and the artificial turf includes any one or more of polyethylene, polypropylene, polyvinyl chloride and polyamide.

Further, the base fabric includes warp threads and weft threads, and the warp threads and the weft threads are interwoven with each other.

Further, the cross-section of the warp threads is flat, the warp threads are arranged parallel to each other, and the distances between the warp threads are equal.

Further, the weft thread includes a first thread and a second thread, the cross section of the first thread is circular, and the cross section of the second thread is flat.

Further, the first wires and the second wires are arranged parallel to each other, and the distance between the first wires and the second wires is equal.

Further, the cross-section of the weft threads is flat, the weft threads are arranged parallel to each other, and the distances between the weft threads are equal.

Further, the warp thread includes a first thread and a second thread, the cross section of the first thread is circular, and the cross section of the second thread is flat.

The beneficial effects of the utility model are:

In the artificial turf prepared by the preparation method of the utility model, the artificial turf is tufted onto the base fabric, and the side of the base fabric opposite to the tufted artificial turf is coated with an adhesive, and the adhesive layer coated on the base fabric passes through the When the air blowing device is formed, air holes are formed, and the water seepage of the artificial turf through the permeable holes increases the water seepage rate. The artificial turf prepared by the utility model does not need to pierce the glue-coated surface of the base cloth through the pricking device, which avoids the damage caused by the pricking holes. The destruction of the artificial turf structure can effectively prevent the artificial turf from loosening and falling off, and improve the service life of the artificial turf.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of artificial turf of the present utility model;

Fig. 2 is a sectional view of the artificial turf of the present invention shown in Fig. 1;

Fig. 3 is a top view of the base cloth of the artificial turf of the present invention shown in Fig. 1;

Fig. 4 is a cross-sectional view of the base fabric shown in Fig. 3 .

In the figure: 100, artificial turf, 1, base cloth, 11, warp thread, 12, weft thread, 121, first thread, 122, second thread, 13, pinhole, 14, permeable hole, 2, artificial grass Silk, 3, bonding layer.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in detail. This figure is a simplified schematic diagram, only schematically illustrating the basic structure of the utility model, so it only shows the configuration related to the utility model.

As shown in Figure 1, the utility model provides a kind of artificial turf 100, is used for laying on the ground to beautify the environment, artificial turf 100 comprises base cloth 1, the artificial grass silk 2 tufted on the base cloth 1, and coating Coating layer 3 on the surface of base fabric 1 is used to fix artificial turf 2. Artificial turf 2 is tufted onto base fabric 1 by a tufting machine. Adhesive layer 3 is coated on base fabric 1 and planted with artificial grass One side of the silk 2, one end of the artificial turf silk 2 passes through the base fabric 1 and is in contact with the adhesive layer 3.

As shown in Fig. 1, Fig. 3 and Fig. 4, the base cloth 1 comprises a plurality of warp threads 11 and a plurality of weft threads 12 interwoven with each other. ; In the present embodiment, the cross section of the warp thread 11 is a flat structure, a plurality of warp thread 11 is arranged parallel to each other and the spacing between every two warp thread 11 is equal, and the weft thread 12 includes the first circular structure in cross section A thread 121 and a second thread 122 with a flat cross-section, the first thread 121 and the second thread 122 are arranged in parallel in a staggered manner and the spacing between the first thread 121 and the second thread 122 is equal; In the embodiment, the cross section of the weft thread 11 is a flat structure, a plurality of weft thread 11 is arranged parallel to each other and the spacing between every two weft thread 11 is equal, and the warp thread 12 includes a first thread with a circular structure in cross section The wires 121 and the second wires 122 having a flat cross section, the first wires 121 and the second wires 122 are arranged alternately and in parallel, and the distance between the first wires 121 and the second wires 122 is equal.

As shown in Figures 1 and 2, the base fabric 1 is provided with pinholes 13 for accommodating the artificial turf 2, and the artificial turf 2 is tufted into the pinhole 13 by a tufting machine, and the artificial turf 2 is tufted One end into the base cloth 1 passes through the pinhole 13 to form a protrusion and is in contact with the adhesive layer 3, and part of the adhesive layer 3 coated on the base cloth 1 penetrates into the pinhole 13 to fix the artificial grass 2 , after coating the adhesive layer 3, the base fabric 1 planted with artificial grass 2 is blown to the pinhole 13 through the blowing device, and part of the adhesive in the pinhole 13 flows to the pinhole 13 driven by the airflow The gas flowing out of the adhesive layer 3 through the pinholes 13 forms a permeable hole 14 for water seepage that communicates with the pinhole 13, and the artificial turf 100 passes through the permeable hole 14 to increase the water permeability.

The material of the base cloth 1 and the artificial turf 2 includes any one or more of polyethylene, polypropylene, polyvinyl chloride and polyamide.

The utility model also provides a preparation method of the artificial turf 100, comprising the following steps:

(1) Select the warp thread 11 and the weft thread 12 , place the warp thread 11 and the weft thread 12 on a knitting machine for weaving, shaping, and rolling to obtain the base fabric 1 .

(2) Put the pellets in the wire drawing machine, add drawing liquid into the wire drawing machine, control the drawing temperature to 100-150°C, and the shrinkage ratio to 0.90-0.98, and carry out wire drawing treatment on the mixed pellets through the wire drawing process, winding, Shape, curl, and obtain artificial grass 2.

(3) The artificial turf silk 2 prepared in step (2) is tufted and implanted on the base cloth 1 prepared in step (1) by a tufting machine, and the tufting machine perforates a plurality of pinholes 13 on the surface of the base cloth 1 , the adhesive is coated on the surface of the base cloth 1 by scraping or roller coating, and the base cloth 1 coated with the adhesive is blown to the base cloth 1 by an air blowing device at an air pressure of 1-4 MPa, The airflow flows part of the adhesive in the pinhole 13 to the outside of the pinhole 13 to form a permeable hole 14, and the adhesive is cured to form a bonding layer 3, which is rolled up and packaged to obtain an artificial lawn.

The pellets are any one or more of polyethylene, polypropylene, polyvinyl chloride and polyamide.

Example 1

The preparation method of the artificial turf of the present embodiment comprises the following steps:

(1) Selecting the warp thread and the weft thread, placing the warp thread and the weft thread on a knitting machine for weaving, setting the shape, rolling up, and obtaining the base fabric.

(2) Put the polyethylene pellets in the wire drawing machine, add the drawing liquid to the wire drawing machine, control the drawing temperature to 100°C, and the shrinkage ratio to 0.90, and carry out wire drawing treatment on the mixed pellets through the wire drawing process, winding, shaping, Roll it up to get artificial turf.

(3) The artificial turf silk prepared in step (2) is tufted and implanted on the base cloth prepared in step (1) by a tufting machine, the adhesive is coated on the surface of the base cloth, and the The base cloth is blown by an air blowing device at an air pressure of 1 MPa, and after the adhesive is cured, it is rolled up and packaged to obtain an artificial turf.

Example 2

(2) Put the polypropylene pellets in the wire drawing machine, add drawing liquid to the wire drawing machine, control the drawing temperature to 110°C, and the shrinkage ratio to 0.92, and carry out wire drawing treatment on the mixed pellets through the wire drawing process, winding, shaping, Roll it up to get artificial turf.

(3) The artificial turf silk prepared in step (2) is tufted and implanted on the base cloth prepared in step (1) by a tufting machine, the adhesive is coated on the surface of the base cloth, and the The base cloth is blown with air pressure of 2 MPa by the air blowing device, and after the adhesive is cured, it is rolled up and packaged to obtain artificial turf.

Example 3

(2) Put the polyvinyl chloride pellets in the wire drawing machine, add drawing liquid into the wire drawing machine, control the drawing temperature to 120°C, and the shrinkage ratio to 0.94, and carry out wire drawing treatment on the mixed pellets through the wire drawing process, winding and shaping , curled up to obtain artificial grass silk.

(3) The artificial turf silk prepared in step (2) is tufted and implanted on the base cloth prepared in step (1) by a tufting machine, the adhesive is coated on the surface of the base cloth, and the The base cloth is blown with air pressure of 3 MPa through the air blowing device, and after the adhesive is cured, it is rolled up and packaged to obtain artificial turf.

Example 4

(2) Put the polyamide pellets in the wire drawing machine, add drawing fluid into the wire drawing machine, control the drawing temperature to 140°C, and the shrinkage ratio to 0.98, and carry out wire drawing treatment on the mixed pellets through the wire drawing process, winding, shaping, Roll it up to get artificial turf.

(3) The artificial turf silk prepared in step (2) is tufted and implanted on the base cloth prepared in step (1) by a tufting machine, the adhesive is coated on the surface of the base cloth, and the The base fabric is blown at 4 MPa by an air blowing device, and after the adhesive is cured, it is rolled up and packaged to obtain artificial turf.

comparative example

Commercially available artificial turf.

Experimental example:

The samples of the artificial turf prepared in Examples 1-4 and the commercially available artificial turf samples in the comparative examples were tested for water permeability by the test method of water permeability in GB/T20394-2006 "Artificial Grass for Sports", and the specifications were taken For each of the artificial turf samples prepared in Examples 1-4 of 500mmX500mm and the commercially available artificial turf samples in the comparative example, put the artificial turf face up into the experimental container and make the sample flat, and pour it into the experimental container 50L of water, calculate the time S used for all the water to flow out, accurate to seconds, calculate the water permeability of the sample by the formula η=(50/S)/0.25X60, and the specific results are as shown in Table 1:

Table 1: Determination table of water seepage rate of artificial turf samples of Examples 1-4 and Comparative Examples

项目project	渗水率(L/(min·m ²)) Water permeability (L/(min m ² ))
标准standard	6060
实施例1Example 1	246246
实施例2Example 2	238238
实施例3Example 3	242242
实施例4Example 4	247247
对比例comparative example	6262

As can be seen from Table 1, the water permeability of the artificial turf samples of Examples 1-4 is far greater than that of the commercially available artificial turf samples. Shaped structure, the cross-section of the first thread in the weft thread 12 is a circular structure, and the warp thread 11 and the weft thread 12 are interlaced to form the base cloth 1 after being woven by a knitting machine, and the base cloth 1 is coated with adhesive and blown During installation, the airflow blown by the blowing device blows out part of the adhesive in the pinhole 13 on the base cloth 1, and the airflow blown out by the adhesive layer 3 through the pinhole 13 forms a water-permeable hole 14 communicating with the pinhole 13, The water seepage of the artificial turf 100 through the water permeable holes 14 increases the water seepage rate, and the artificial turf 100 prepared by the utility model does not need to pierce the glued surface of the base cloth 1 through the pricking device, which avoids the impact of the pricking on the structure of the artificial turf 100. damage, can effectively prevent the artificial turf 2 from loosening and falling off, and improve the service life of the artificial turf 100 .

Inspired by the above-mentioned ideal embodiment according to the present utility model, through the above-mentioned description content, relevant staff can make various changes and modifications without departing from the scope of the present utility model. The technical scope of this utility model does not include It is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

A kind of artificial turf, it is characterized in that: comprise base cloth, the artificial turf silk that is tufted on described base cloth, and the bonding layer that is coated on described base cloth, and described bonding layer is provided with by blowing Water-permeable holes formed by blowing air from the air device.
The artificial turf according to claim 1, characterized in that: the base cloth is provided with pinholes formed by tufting the artificial turf, one end of the artificial turf passes through the pinhole to form a protrusion and in contact with the adhesive layer.
The artificial turf according to claim 1, characterized in that: the materials of the base cloth and the artificial turf include any one or more of polyethylene, polypropylene, polyvinyl chloride and polyamide.
The artificial turf according to claim 1, characterized in that: the base fabric comprises warp threads and weft threads, and the warp threads and the weft threads are interwoven with each other.
The artificial turf according to claim 4, characterized in that: the cross-section of the warp threads is flat, the warp threads are arranged parallel to each other, and the distances between the warp threads are equal.
The artificial lawn according to claim 4, characterized in that: the weft thread comprises a first thread and a second thread, the cross section of the first thread is a circular structure, and the cross section of the second thread is It has a flat structure.
The artificial lawn according to claim 6, characterized in that: the first wires and the second wires are arranged parallel to each other, and the distance between the first wires and the second wires is equal.
The artificial lawn according to claim 4, characterized in that: the cross-section of the weft threads is flat, the weft threads are arranged parallel to each other, and the distances between the weft threads are equal.
The artificial turf according to claim 4, characterized in that: said warp thread comprises a first thread and a second thread, the cross section of said first thread is a circular structure, and the cross section of said second thread is It has a flat structure.