CN214061128U - Green artificial turf with SPU (polyurethane elastomer) gum - Google Patents

Abstract

The utility model relates to an artificial turf technical field has that the water proofness is good, and resistance to plucking ability and tearing resistance are high, simple structure, and the resilience is good, long service life's characteristics. The artificial lawn comprises a grass silk layer, a base cloth layer and a back glue layer, wherein the grass silk layer is formed by grass clusters which are arranged in rows and columns, the grass clusters are woven on the base cloth layer, the back glue layer is coated on the bottom surface of the base cloth layer, the roots of the grass clusters are bonded with the base cloth together, each grass cluster is formed by short grass filaments and long grass filaments, the parts of the long grass filaments, which exceed the short grass filaments, are bent to the upper part of one adjacent grass cluster in the same direction, the short grass filaments of all the grass clusters form a grass filament bottom layer, the long grass filaments of all the grass clusters form a grass filament surface layer, and the grass filament bottom layer provides elastic support for the grass filament surface layer; the back glue layer is composed of a butylbenzene latex layer coated on the bottom surface of the base cloth layer and an SPU back glue layer coated on the bottom surface of the butylbenzene latex layer, and drain holes arranged in rows and columns are formed from the base cloth layer to the SPU back glue.

Description

Green artificial turf with SPU (polyurethane elastomer) gum

Technical Field

The utility model belongs to the technical field of artificial turf technique and specifically relates to an artificial turf of green SPU gum.

Background

An artificial lawn is an industrial product which is made by planting synthetic fiber with imitated grass leaf shape (called grass silk in the industry) on a woven base fabric in a cluster and coating the back surface with a coating with a fixing effect.

The artificial turf mainly comprises grass silk, base cloth and gum layer, and the base cloth is as the fixed basis of grass silk, and the gum layer is formed by the glue of coating in the base cloth bottom surface, bonds the root of grass silk and base cloth together, plays the effect that keeps the grass silk form and prevent that the grass silk atress from being extracted, guarantees artificial turf's life. In the artificial turf industry at present, the most popular gum technology is the butadiene styrene latex gum, and the butadiene styrene latex gum is widely applied in China due to convenient use and low price, but the artificial turf of the butadiene styrene latex gum has relatively poor water resistance, pull-out resistance and tear resistance; secondly, common artificial turf is mostly grass clusters of a single kind, and the grass silk has reduced resilience after long-term use, is easy to fall down locally, and foreign customers with high requirements for the turf are more in groups and need to be improved.

Disclosure of Invention

The utility model aims at overcoming not enough among the above-mentioned background art, provide an artificial turf of green SPU gum, it is good to have the water proofness, and resistance to plucking ability and tearing resistance are high, have simple structure simultaneously, and the resilience is good, long service life's technical characterstic.

The technical purpose of the utility model is realized like this: a green artificial lawn with SPU (polyurethane foam) back adhesive comprises a grass silk layer, a base cloth layer and a back adhesive layer, wherein the grass silk layer is formed by grass clusters which are arranged in rows and columns, the grass clusters are woven on the base cloth layer, the back adhesive layer is coated on the bottom surface of the base cloth, the roots of the grass clusters are bonded with the base cloth together, each grass cluster is formed by short grass filaments and long grass filaments, the parts of the long grass filaments, which exceed the short grass filaments, are bent to the upper part of one adjacent grass cluster in the same direction, the short grass filaments of all the grass clusters form a grass filament bottom layer, the long grass filaments of all the grass clusters form a grass filament surface layer, and the grass filament bottom layer provides elastic support for the grass filament surface layer; the back glue layer is composed of a butylbenzene latex layer coated on the bottom surface of the base cloth layer and an SPU back glue layer coated on the bottom surface of the butylbenzene latex layer, and drain holes arranged in rows and columns are formed from the base cloth layer to the SPU back glue.

Preferably, the short grass filaments are curved filaments, and the long grass filaments are straight filaments.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model divides the grass into two layers, the grass bottom layer provides elastic support for the grass surface layer, and the service life can be prolonged because the grass bottom layer has shorter length, strong elastic recovery capability and strong treading resistance; the SPU gum has been add on the gum layer on current butylbenzene latex gum basis, grabs firmly the grass root with the brute force, resists the grass silk and extracts, and water resistance can obtain improving, avoids the diffuse bubble damage, and tear resistance also obtains improving, does not fear to trample and rolls, and the adhesion property and the ageing resistance of SPU gum are strong, can effectively stop the crack of splining, promote life, and itself is green material, and is nontoxic harmless tasteless.

Drawings

Fig. 1 is a sectional structure of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples.

In the description of the present invention, it is to be noted that unless otherwise explicitly specified and limited, specific meanings of the general terms in the present invention may be understood as specific conditions by those of ordinary skill in the art.

As shown in fig. 1, the artificial lawn with green SPU gum provided by the present invention is composed of a grass filament layer, a base cloth layer 3 and a gum layer. The grass silk layer is formed by grass clusters arranged in rows and columns, the grass clusters are woven on the base cloth layer 3, the back glue layer is coated on the bottom surface of the base cloth, and the roots of the grass clusters are bonded with the base cloth together. Each grass cluster consists of short grass filaments 2 and long grass filaments 1, and the parts of the long grass filaments 1, which exceed the short grass filaments 2, are bent to the upper side of one grass cluster adjacent to the short grass filaments in the same direction. The short grass filaments 2 of all the grass clusters form a grass filament bottom layer, the long grass filaments 1 of all the grass clusters form a grass filament surface layer, and the grass filament bottom layer provides elastic support for the grass filament surface layer. The back glue layer is composed of a butylbenzene latex layer 4 coated on the bottom surface of the base cloth layer 3 and an SPU back glue layer 5 coated on the bottom surface of the butylbenzene latex layer 4, and drainage holes 6 which are arranged in rows and columns are formed from the base cloth layer 3 to the SPU back glue. In order to enhance the elasticity, the short grass filaments 2 adopt curved filaments, and in order to facilitate the bending of the long grass filaments, the long grass filaments 1 adopt straight filaments.

Generally, the long grass filaments and the short grass filaments are recommended to be Polyethylene (PE) type grass filaments, the length of the long grass filaments is recommended to be 1.5-2.5 times that of the short grass filaments, and the styrene-butadiene latex layer 4 and the SPU back glue layer 5 on the back face are required to be uniform in thickness and consistent in color and luster when being glued, and the primary colors of the grass filaments are not leaked. The SPU backsize is a silane modified polyurethane based binder, commercially available.

The utility model discloses a production process is similar with current artificial turf, and the density degree of the grass silk quantity and the distribution of grass cluster is decided according to the use occasion. The difference lies in that when weaving the grass bunch, long filaments and short filaments are integrated together for weaving, when coating the gum, the butylbenzene latex layer 4 is coated firstly, when the butylbenzene latex layer 4 is solidified or is close to be solidified, the SPU gum layer 5 is coated, and after the butylbenzene latex layer 4 and the SPU gum layer 5 are completely solidified, a drain hole 6 is punched, wherein the drain hole 6 should avoid the root of the grass bunch as much as possible, and the density degree is determined according to the use environment.

The above description is only a preferred embodiment of the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. The utility model provides an artificial turf of green SPU gum, comprises grass silk layer, base cloth layer (3) and gum layer, and grass silk layer comprises the grass cluster of arranging in rows and columns, and the grass cluster is woven on base cloth layer (3), and the gum layer coating is in the base cloth bottom surface, bonds the root of grass cluster and base cloth together, its characterized in that: each grass cluster consists of short grass filaments (2) and long grass filaments (1), the part of each long grass filament (1) which exceeds the short grass filaments (2) is bent to the upper part of the adjacent grass cluster in the same direction, the short grass filaments (2) of all the grass clusters form a grass filament bottom layer, the long grass filaments (1) of all the grass clusters form a grass filament surface layer, and the grass filament bottom layer provides elastic support for the grass filament surface layer; the back glue layer is composed of a butylbenzene latex layer (4) coated on the bottom surface of the base cloth layer (3) and an SPU back glue layer (5) coated on the bottom surface of the butylbenzene latex layer (4), and drain holes (6) arranged in rows and columns are formed from the base cloth layer (3) to the SPU back glue.

2. A green SPU-adhesive-backed artificial lawn as claimed in claim 1, wherein: the short grass filaments (2) are curved filaments, and the long grass filaments (1) are straight filaments.

Images