CZ23519U1 - Back cloth for synthetic turf - Google Patents

Description

Backing fabric for artificial turf

Technical field

Technical language refers to a backing fabric for artificial turf.

BACKGROUND OF THE INVENTION

Various designs of underlay fabrics for artificial turf are known in the art. These constructions are based on carpet production. The backing fabric is normally made of polypropylene tapes on a loom and subsequently presented to the embroidery machine. Depending on the desired type of final artificial turf, the machine needs to sew the required number of mated strips or monofilaments into the backing fabric, which form the pile of the running surface of the lawn on the face side of the backing fabric. These tapes or monofilaments form a loop by sewing on an embroidery machine on the back of the backing fabric. This creates a semi-finished artificial turf.

Subsequently, the blank thus produced is usually provided with a latex coating on its back side, which is carried out on the coating machine, to anchor the loops to the underlying fabric and to overall stabilize the artificial turf.

World-wide manufacturers use different types of backing fabric to produce lawns. They are mainly fabrics, made of polypropylene tapes with various configurations and weave construction. One important aspect is anchoring the loop in the fabric. For extreme loading of football or rugby turf, two separate fabrics are used instead of one backing fabric. This results in higher stability of the entire lawn and guarantees high pull-out strength.

2o The disadvantage of the current state of the art is that in order to ensure high turf stability and perfect securing of the pile loop against pulling out, two fabrics must be used which are either sewn together with longitudinal stitches or connected to the nonwoven web or presented separately for embroidery machine. The big problem is that when the two fabrics are joined together, the two fabrics move together, creating falsities and, above all, making production more expensive. Upon needling, the resulting fabric strength decreases. Unconnected fabrics are more prone to tearing loops and splitting fabrics.

The essence of the technical solution

These disadvantages are overcome by an artificial turf backing fabric, a polyolefin-based material, in particular polypropylene, which consists in that it consists of two rigidly bonded layers, namely an upper layer representing the front face of the artificial turf and a lower layer, representing the reverse side of the artificial turf, the pile extending upwardly from the top layer forming the operating surface of the artificial turf, and wherein the pile forms loops coated at the bottom of the bottom layer, in particular of latex, to anchor the loops to the underlying fabric.

In a preferred embodiment, the topsheet and the backsheet are rigidly connected by a weaving interlock, wherein the individual attachment points are formed by different weaving looms, their different interweaving and the interlinking density.

In a further preferred embodiment, the individual rigidly bonded layers have different design properties.

In another preferred embodiment, the individual tightly bonded layers have different strength properties.

In a further preferred embodiment, the wedges are made of plywood, core, spun yarn or other yarns and tapes in the individual tightly joined layers.

The backing fabric with two tightly bonded layers thus forms a compact whole providing overall stabilization of the artificial turf and high tuft lock strength, and represents a cost saving compared to the prior art.

-1 CZ 23519 Ul

Overview of the drawings

The technical solution will be explained in more detail by means of a drawing.

Examples of technical solution

The accompanying drawing, consisting of a single figure, shows a cross-sectional view of an artificial turf, wherein the base fabric 1 of a polyolefin-based material, in particular polypropylene, consists of two firmly joined layers, namely a top layer 1A representing the face side. and from the bottom layer LB representing the reverse side of the artificial turf, the pile 2 extending upwardly from the upper layer 1A forming the operating surface of the artificial turf, and wherein the pile 2 forms loops 3 on the underside of the lower layer 1B, especially of latex, kio anchoring the loops 3 to the underlying fabric 1.

In a preferred embodiment, the topsheet 1A and the backsheet 1B are firmly connected by a weave, wherein the individual attachment points are formed by different weave weaves, their different weave and the density of the weave.

In a further preferred embodiment, the individual tightly bonded layers 1A and 1B have different design properties.

In another preferred embodiment, the individual tightly bonded layers 1A and 1B have different strength properties.

In a further preferred embodiment, in the individual layers 1A and 1B, the wefts are made of chipboard or core, spun yarn or other yarns and tapes.

The backing fabric 1 thus forms a compact unit ensuring overall stabilization of the artificial turf and a high tuft lock strength.

Claims (5)

PROTECTION REQUIREMENTS Substrate fabric for artificial turf, of a polyolefin-based material, in particular of polypropylene, characterized in that it consists of two tightly bonded layers, namely: 25 of the upper layer (1A) representing the front side of the artificial turf, and from the lower layer (1B) representing the reverse side of the artificial turf, the pile (1A) extending upwardly from the upper layer (1A). 2) forming the operating surface of an artificial turf, and wherein the pile (2) forms loops (3) provided with a coating (4), in particular of latex, on the underside of the backsheet (1B) to anchor the loops (3) to the underlying fabric (1) ). A backing fabric for artificial turf, according to claim 1, characterized in that the topsheet (1A) and the backsheet (1B) are rigidly connected by a weaving interweaving, wherein the individual binding points are formed by different weaving looms, their different bonding and bonding density. A backing fabric for artificial turf, according to claims 1 and 2, characterized in that: 35 that the individual tightly bonded layers (1A) and (1B) have different constructional features. An artificial turf backing fabric according to claims 1 and 2, characterized in that the individual firmly bonded layers (1A) and (1B) have different strength properties. Substrate fabric for artificial turf, according to claims 1 to 4, characterized in that in the individual firmly bonded layers (1A) and (1B) the weft is made of chipboard or core, Spun yarn or other yarn and strip.