Method for Manufacturing Artificial Turf

The present invention relates to the technical field of artificial turf production, and in particular to a method for manufacturing an artificial turf.

An artificial turf is widely used in various places such as sports venues, landscaping and home decoration because of exquisite and neat appearance, excellent performance, long service life, low maintenance cost and many other advantages thereof. The artificial turf can be divided into an injection-molded artificial turf and a woven artificial turf according to production processes. A method for producing an injection-molded artificial turf is to use an injection molding process to extrude plastic particles in a mold at one time, and use a bending technology to bend the turf, so that turf leaves are regularly arranged in an equidistant and equivalent manner, and the heights of the turf leaves are completely uniform. A method for producing a woven turf is to implant synthetic fibers that imitate turf leaves into a woven base cloth, and then apply a coating for fixing on the back, thereby forming an artificial turf. At present, most of the base cloths of commercially available woven artificial turfs are woven with flat warp and weft yarns, and the spacing between the warp and weft yarns is relatively small. Furthermore, the base cloth needs to be applied with an adhesive for fixing turf yarns. After the adhesive is cured, a sealed coating is formed, resulting in a low water seepage rate of the woven artificial turf, which affects the drainage performance of the artificial turf. In order to improve the water seepage rate, when manufacturers produce the woven artificial turf, a piercing device will be used to pierce the adhesive applied surface of the base cloth after the adhesive is cured. However, the piercing operation will damage the structure of the woven artificial turf, causing the artificial turf yarns near the pierced holes to loosen and fall off, which affects the appearance and service life of the woven artificial turf.

Based on the above, the present invention provides a method for manufacturing an artificial turf to solve the above-mentioned problems.

The technical solution adopted by the present invention to solve the technical problems is:

Provided is a method for manufacturing an artificial turf, including the following steps:

Further, the base cloth in step (1) includes warp yarns and weft yarns, and the warp yarns and the weft yarns are cross-woven with each other.

Further, the adhesive applying mode in step (4) is scraping or roller coating, and the air pressure blown out by the air blowing device is 1-4 MPa.

Further, the cross section of the warp yarn is a flat structure, the weft yarns include first yarns and second yarns, the cross section of the first yarn is a circular structure, the cross section of the second yarn is a flat structure, and the first yarns and the second yarns are interlaced.

Further, the cross section of the weft yarn is a flat structure, the warp yarns include first yarns and second yarns, the cross section of the first yarn is a circular structure, the cross section of the second yarn is a flat structure, and the first yarns and the second yarns are interlaced.

Further, a method for manufacturing the base cloth includes the following steps:

Further, a method for manufacturing artificial turf yarns in step (2) includes the following steps:

Further, the granule is any one or more of polyethylene, polypropylene, polyvinyl chloride and polyamide.

Further, the drawing temperature is 100-150° C.

Further, the retraction ratio is 0.90-0.98.

The present invention has the following beneficial effects:

According to the artificial turf manufactured by the manufacturing method of the present invention, the artificial turf yarns are tufted on the base cloth, and the adhesive is applied on the base cloth opposite to a side having the artificial turf yarns tufted. When passing through the air blowing device, permeable holes are formed in the bonding layer applied on the base cloth, and the water seepage rate of the artificial turf is increased by means of water seepage through the water permeable holes. By using the artificial turf manufactured by the present invention, there is no need to pierce the adhesive applied surface of the base cloth by a piercing device, thereby avoiding damage to the structure of the artificial turf by piercing, effectively preventing the artificial turf yarns from loosening and falling off, and prolonging the service life of the artificial turf.

In the figures:. artificial turf,. base cloth,. warp yarn,. weft yarn,. first yarn,. second yarn,. pinhole,. water permeable hole,. artificial turf yarn,. bonding layer.

The present invention will be described in detail with reference to the accompanying drawings. The figures are simplified schematic views which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

As shown in, the present invention provides an artificial turffor laying on the ground to beautify the environment. The artificial turfincludes a base cloth, artificial turf yarnstufted on the base cloth, and a bonding layerapplied on the surface of the base clothfor fixing the artificial turf yarns. The artificial turf yarnsare tufted on the base clothby a tufting machine. The bonding layeris applied on the base clothopposite to a side where the artificial turf yarnsare implanted. One end of the artificial turf yarnpasses through the base clothand is in contact with the bonding layer.

As shown in,and, the base clothincludes a plurality of warp yarnsand a plurality of weft yarnsthat are cross-woven with each other, and the warp yarnsand the weft yarnsare woven by a weaving machine and then interlaced with each other to form the base cloth. In this embodiment, the cross section of the warp yarnis a flat structure, the plurality of warp yarnsare arranged parallel to each other, the spacing between every two warp yarnsis equal, the weft yarnsinclude first yarnswith a circular cross section and second yarnswith a flat cross section, the first yarnsand the second yarnsare interlaced in parallel, and the spacing between the first yarnand the second yarnis equal. In another embodiment, the cross section of the weft yarnis a flat structure, the plurality of weft yarnsare arranged parallel to each other, the spacing between every two weft yarnsis equal, the warp yarnsinclude first yarnswith a circular cross section and second yarnswith a flat cross section, the first yarnsand the second yarnsare interlaced in parallel, and the spacing between the first yarnand the second yarnis equal.

As shown inand, pinholesfor accommodating the artificial turf yarnsare formed in the base cloth. The artificial turf yarnsare tufted and inserted in the pinholesby a tufting machine. One end of the artificial turf yarntufted in the base clothpasses through the pinholeto form a protrusion and is in contact with the bonding layer. The bonding layerapplied on the base clothpartially penetrates into the pinholeto fix the artificial turf yarns. After the bonding layeris applied, air is blown to the base clothimplanted with the artificial turf yarnsby means of the pinholesthrough the air blowing device. Part of the adhesive in the pinholesflows to the outside of the pinholesunder the drive of the airflow. Water permeable holesfor water seepage, which are in communication with the pinholes, are formed in the bonding layerthrough the gas flowing out of the pinholes. The water seepage rate of the artificial turfis increased by means of water seepage through the water permeable holes.

The material of the base clothand the artificial turf yarnsincludes any one or more of polyethylene, polypropylene, polyvinyl chloride and polyamide.

The present invention further provides a method for manufacturing the artificial turf, including the following steps:

The granule is any one or more of polyethylene, polypropylene, polyvinyl chloride and polyamide.

A method for manufacturing an artificial turf in this embodiment includes the following steps:

The water seepage rates of the artificial turf samples manufactured in Embodiments 1-4 and the commercially available artificial turf sample in Comparative Example are measured by a method for testing water permeability in GB/T20394-2006 “Artificial Turf for Sports”. 500 mm×500 mm of a portion of the artificial turf samples manufactured in Embodiments 1-4 and a portion of the commercially available artificial turf sample in Comparative Example are taken. The artificial turf yarns facing upwards are placed in an experimental container, and the samples are flattened. 50 L of water is poured into the experimental container, and the time S when the water completely flows out is calculated (accurate to seconds). The water seepage rates of the samples are calculated by Formula η=(50/S)/0.25×60. Specific results are shown in Table 1:

As can be seen from Table 1, the water seepage rate of the artificial turf samples in Embodiments 1-4 manufactured by the present invention is much greater than that of the commercially available artificial turf sample. This is because the cross section of the warp yarnsof the artificial turfmanufactured by the manufacturing method of the present invention has a flat structure, and the cross section of the first yarns in the weft yarnshas a circular structure. After the warp yarnsand the weft yarnsare woven by the weaving machine and interlaced with each other to form the base cloth, when the base clothhaving the adhesive applied passes through the air blowing device, the airflow blown out by the air blowing device blows out part of the adhesive in the pinholeson the base cloth. The water permeable holeswhich are in communication with the pinholesare formed in the bonding layerthrough the airflow blown out by the pinholes. The water seepage rate of the artificial turfis increased by means of water seepage through the water permeable holes. By using the artificial turfmanufactured by the present invention, there is no need to pierce the adhesive applied surface of the base clothby a piercing device, thereby avoiding damage to the structure of the artificial turfby piercing, effectively preventing the artificial turf yarnsfrom loosening and falling off, and prolonging the service life of the artificial turf.

With the above-mentioned ideal embodiments of the present invention as inspiration, through the above-mentioned description content, the related staff can make various changes and modifications without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content in the specification, and the technical scope thereof needs to be determined according to the scope of the claims.