JP3222141U - Warp knitting artificial turf - Google Patents

Abstract

To provide a warp knitted artificial turf. A warp-knitted artificial turf is disclosed, comprising a knitted substrate foundation 10 and a turf layer 20 provided on one side of the knitted substrate foundation, the knitted substrate foundation comprising at least one base substrate. Material, and a plurality of woven yarns including a base fiber and at least one turf fiber are warp-knitted, and the turf yarn of the turf layer is made of the turf fiber when the knitting base substrate is through-knitted It is formed by cutting the turf loop after forming a turf loop by looping in the direction away from the knitting substrate ground on the turf layer side of the knitted substrate ground. [Selected figure] Figure 3

Description

  The present invention relates to the technical field of warp knitted artificial turf.

  When manufacturing a warp-knitted artificial turf, the artificial turf fiber which imitates the shape of a grass leaf is planted on a base cloth, and the back surface adhesive agent layer for fixing turf fiber to the back of a base cloth is applied. The warp-knitted artificial turf is widely used for sports grounds, garden grounds, and greening grounds because it meets long-term exercise resistance requirements, is easy to maintain, and is relatively flat.

  As shown in FIGS. 1 and 2, the prior art warp knitted artificial turf comprises a backing 10 ', a turf layer 20' disposed on one side of the backing 10 'and a turf layer of the backing 10'. 20 'includes a backside adhesive layer 30' disposed on one side opposite to 20 '. The base 10 'is made of, for example, PP (polypropylene). The turf yarn of the turf yarn layer 20 'is made of, for example, polypropylene or PE (polyethylene). The turf yarn is placed on the base fabric 10 'by tufting technology to form a turf yarn layer 20', and the turf yarn root 21 'of the turf yarn layer 20' is located on one side of the back surface adhesive layer 30 'and Projecting from the cloth 10 ', only the turf root 21' contacts the base cloth 10 'for each tuft bundle. The backside adhesive layer 30 'is generally made of styrene butadiene latex or PU (polyurethane, polyurethane), and secures the turf root 21' of the turf layer to the base fabric 10 '. Because the water permeability of the base fabric 10 'is poor, a plurality of water permeable holes 11' are provided in the base fabric 10 'of the warp-knitted artificial turf and the back surface adhesive layer 30'.

  The object of the present invention is to provide a warp knitted artificial turf. A warp-knitted artificial turf comprises a knitted base and a turf layer disposed on one side of the knitted base, and the knitted base comprises a yarn comprising at least one base fiber and at least one turf fiber. The plurality of turf yarns of the turf yarn layer are made by weaving the turf yarn fibers on the turf yarn layer side of the knitting yarn substrate in the direction away from the knitting yarn substrate when the knitting yarn substrate is warp-knitted. It is formed by looping to form a tuft loop and then cutting the tuft loop.

  In some embodiments, the warp-knitted artificial turf further includes a back surface adhesive layer disposed on one side of the knitted base opposite to the turf layer to fix the turf layer to the knitted base. .

  In some embodiments, the backside adhesive layer is an EVA latex layer.

In some embodiments, the turf fibers include straight yarns and / or crimped yarns and / or split yarns.

  In some embodiments, at least two of the turf fibers have different cross-sectional shapes.

  In some embodiments, at least two of the turf fibers have different colors.

  In some embodiments, at least two of the turf fibers have different deniers.

  In some embodiments, the tufts of the tuft layer have the same or different heights.

  In the warp-knitted artificial turf according to the present invention, since the turf yarn of the turf yarn layer is knitted with the knitting base by the warp-knitting method, it is possible to improve the pullout resistance of the turf yarn of the turf yarn layer. It is difficult to do. The warp knitted artificial turf has excellent water permeability because there are a large number of meshes in the knitted base.

  BRIEF DESCRIPTION OF THE DRAWINGS An exemplary embodiment of the invention will now be described in detail with reference to the drawings in which other features of the invention and their advantages are apparent.

The drawings described herein are provided to further facilitate the understanding of the present invention and constitute a part of the present application, and the exemplary embodiments of the present invention and the description thereof are intended to interpret the present invention. Yes, it does not limit the present invention properly.
It is a schematic diagram of the side structure of the warp knitting artificial turf by a prior art. It is a schematic diagram of the bottom part structure of the warp knitting artificial turf by a prior art. It is a schematic diagram of the side structure of the warp knitting artificial turf in the Example of this invention. It is a structure schematic diagram of the knitting base of the warp knitting artificial turf in the example of the present invention.

  The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention, but of course the embodiments described are only a part of the embodiments of the present invention, It is not all examples. In the following, the description of at least one exemplary embodiment is merely illustrative in nature and does not in any way limit the invention and its application or use. Based on the embodiments of the present invention, all other embodiments that can be conceived by those skilled in the art without requiring creative efforts belong to the protection scope of the present invention.

  Unless otherwise noted, the relative arrangement of members and steps described in these examples, the expression of numerals, and the numerals are not limited to the scope of the present invention. Also, for convenience of explanation, the size of each portion shown in the drawings is not drawn according to the actual proportionality. While the techniques, methods and devices known to those skilled in the art may not be discussed in detail, the techniques, methods and devices should be considered as part of the authorization specification as appropriate. In all the examples shown or discussed herein, any specific values are only exemplary and not limiting. Thus, examples other than the exemplary embodiment can have different values. Similar symbols and alphabets indicate similar items in the following drawings. Therefore, when an item is defined in one drawing, it does not need to be further discussed in the following drawings.

  As shown in FIG. 3, an embodiment of the present invention provides a warp knitted artificial turf. The warp-knitted artificial turf comprises a knitted substrate underlayer 10 and a turf layer 20 disposed on one side of the knitted substrate underlayer 10, and the knitted substrate underlayer 10 comprises at least one substrate underlying fiber and A plurality of yarns comprising at least one turf yarn fiber are warp-knitted, and the turf yarn of the turf yarn layer 20 knits the turf yarn fibers when the knitting substrate ground 10 is knitted. It is formed by looping in the direction away from the knitted base material 10 on the turf yarn layer 20 side to form a turf yarn loop and cutting the turf yarn loop.

  Since the turf yarn of the turf yarn layer 20 of the warp-knitted artificial turf is knitted with the knitting base 10 by the warp knitting method, the pull-out resistance of the turf yarn of the turf yarn layer 20 can be improved. It is difficult to do.

  FIG. 4 shows a schematic structure of the knitted base 10 according to an embodiment of the present invention, and the dark colored yarn 11 is a single woven thread in the knitted base 10. As shown in FIG. As shown in FIG. 4, by having a large amount of mesh in itself, the knitted base 10 reaches 3 to 4 times as much as the base fabric of the tufted warp knitted artificial turf of the water permeability, thus The synthetic turf has excellent permeability.

  As shown in FIG. 3, in the present embodiment, the warp-knitted artificial turf is installed on one side of the knitting base 10 opposite to the turf layer 20 to adhere the back layer 20 to the knitting base 10. Agent layer 30 is further included. Securing the turf yarn with the back adhesive layer 30 and curing the back of the bottom of the knitted substrate 10 meets the laying and use requirements.

  Materials for producing turf yarn fibers may further include PP or PE materials. The base fiber is made of, for example, a PET (polyethylene terephthalate) material.

  In some embodiments, the back adhesive layer 30 is an EVA latex layer. EVA latex is an abbreviation of ethyl acetate-ethylene copolymer emulsion, and is a polymer aqueous emulsion formed by copolymerizing ethyl acetate and ethylene monomer as basic raw materials together with other auxiliary materials by an emulsion polymerization method. Gently non-toxic and highly adhesive.

  According to the prior art, it is common to use styrene butadiene latex or PU material as the material of the back surface adhesive layer, and the warp knitted artificial turf used after having been used for a predetermined time has a low recycling rate and a high recovery cost. Although the industry usually treats as waste, the global annual waste area reaches about one million square meters, and tends to increase year by year, and the environmental load increases. The warp-knitted artificial turf of this example satisfies the laying requirements by producing the back surface adhesive layer 20 using recyclable EVA latex, and after being used for a predetermined time, it is completely recovered as a whole. Reclaimed particles can be produced and recycled, thereby effectively recovering and using warp-knitted artificial turf that has an expired life, reducing environmental pollution.

  The turf yarn fibers can be arranged as required. For example, in some embodiments, the turf fibers include straight yarns and / or crimped yarns and / or split yarns, and in some embodiments, at least two of the turf fibers have different cross-sectional shapes In some embodiments, at least two of the turf fibers have different colors, and in some of the embodiments, at least two of the turf fibers have different deniers, and in some of the embodiments , The height of the tufts of turf layer 20 is the same or different.

  The knitting machine for producing the warp-knitted artificial turf mainly comprises a knitting mechanism, a traverse mechanism, a warp feeding mechanism, a pulling and winding mechanism, a transmission mechanism, and a cutting mechanism for cutting the tuft loop. A turf yarn fiber is loaded with one or more sets of base fibers arranged in parallel to the knitting mechanism in the warp direction, and the working needle of the needle bed for the base knitting of the knitting machine and the crochet bed for forming the turf layer The turf fiber is looped with a crochet needle and the looped turf fiber is cut to obtain turf yarn of turf layer 20. By adjusting the distance between the needle bed and the crochet bed, the height of the turf yarn of the turf yarn layer 20 can be changed.

  When forming the backside adhesive layer 30, after improving the density of the adhesive with a foaming machine, the backside adhesive application machine is used to uniformly blade apply the improved density adhesive to the knitted base 10, and then Bake and cure the warp knitted artificial turf in an oven, thereby achieving the purpose of setting and drying. The baked artificial turf after baking and setting is taken up by a winder and packaged to obtain a finished product.

  Finally, the above embodiments are only to illustrate the technical solution of the present invention and are not intended to be limiting. Although described in detail with reference to the preferred embodiments, those skilled in the art will understand that embodiments of the present invention can be modified and equivalent replacement of some technical features can be performed. They should fall within the scope of the technical solution claimed by the present invention without departing from the subject matter of the technical solution of the invention.

Claims (8)

A warp-knitted artificial turf comprising a knitted substrate underlayer (10) and a turf layer (20) disposed on one side of the knitted substrate underlayer (10), wherein the knitted substrate underlayer (10) A plurality of warp-knitted yarns comprising at least one base fiber and at least one turf fiber are warp-knitted, and the turf yarn of the turf layer (20) is the woven base fabric. When warp knitting (10), the turf yarn is looped in a direction away from the knitting substrate foundation (10) on the turf layer (20) side of the knitting substrate foundation (10) to perform turf yarn A warp knitted artificial turf characterized by being formed by cutting the turf loop after forming a loop. The back surface adhesive layer (30) is further disposed on one side of the knitted base (10) opposite to the turf layer (20) to fix the turf layer (20) to the knitted base (10). The warp knitted artificial turf according to claim 1, comprising. The warp knitted artificial turf according to claim 2, wherein the back surface adhesive layer (30) is an EVA latex layer. The warp knitted artificial turf according to claim 1, wherein the turf fiber comprises straight yarn and / or crimped yarn and / or split yarn. The warp knitted artificial turf according to claim 1, wherein at least two of the turf fibers have different cross-sectional shapes. The warp knitted artificial turf according to claim 1, wherein at least two of the turf fibers have different colors. The warp knitted artificial turf according to claim 1, wherein at least two of the turf fibers have different deniers. The warp knitted artificial turf according to claim 1, wherein the tufts of the turf layer (20) have the same height or different heights.