CN111575937A - A kind of artificial turf tufted base fabric, production method and lawn produced by the same - Google Patents

Abstract

The invention discloses an artificial turf tufting base fabric, which comprises a base fabric and a yarn, and the base fabric and the yarn are integrally processed and formed by a seaming process. The tufted base fabric obtained by the invention can not only increase the warp strength of the artificial turf, but also can improve the bonding force between the adhesive and the base fabric, and at the same time solve the problem of glue loss and seams existing in the artificial turf prepared by using a single-layer base fabric The problem of less peeling force.

Description

A kind of artificial turf tufted base fabric, production method and lawn produced by the same

technical field

The invention relates to the technical field of artificial turf, in particular to an artificial turf tufted base fabric, a production method and a lawn produced by the same.

Background technique

Sports such as football and golf are usually played on grass, which can relieve the tension of athletes and reduce the impact on athletes when they fall to a certain extent. However, with the prolongation of use time, the ordinary lawn will wear out, which will cause the density and height of the lawn to decrease, and with the change of seasons, the grass on the ordinary lawn will change color, so the lawn will not be able to play its role. proper role.

In response to the above situation, researchers have developed artificial turf. At present, artificial turf mainly includes three parts, namely artificial grass silk (usually drawn from PA, PP, PE material), base fabric (single-layer base fabric, multi-layer base fabric and composite base fabric, etc.) and adhesive (styrene acrylic fabric) Emulsion, carboxylated styrene-butadiene emulsion, polyurethane latex, etc.); wherein, the base fabric and artificial grass silk are sewn together by a tufting machine, and then the two are compounded together by an adhesive to form a complete artificial turf. Compared with traditional natural turf, artificial turf has the advantages of bright appearance, green in four seasons, vividness, good drainage performance, long service life and low maintenance cost. Therefore, most stadiums and locations that need to be greened and decorated usually use artificial turf instead of natural turf.

Nowadays, many factors such as cost and production process are considered in the preparation process of artificial turf, and some of the base fabrics used are PP single-layer base fabrics. The adhesion of the base fabric is poor. This will cause two problems. One is that the adhesive and the base cloth are not firmly combined, which is easy to cause the problem of glue falling; At the same time, the strength of the seam is also insufficient due to the poor adhesion, and the index shows that the peeling force is small.

In view of the above problems, the current solution is to add a layer of mesh cloth to the base fabric or implant a layer of composite cotton on the surface of the PP single-layer base fabric to increase the frizziness of the entire base fabric, thereby improving the adhesive and the base fabric. However, after adding a layer of mesh, the amount of adhesive used increases, and the cost of the mesh is also high, resulting in insufficient price competitiveness of the product; at the same time, after the composite cotton is implanted, not only the amount of adhesive increases, but also the base. The strength of the cloth will be reduced, and the cost performance will be significantly reduced.

Therefore, how to provide an artificial turf tufted base fabric that improves the bonding strength of the adhesive to the base fabric is an urgent problem for those skilled in the art to solve.

SUMMARY OF THE INVENTION

In view of this, the present invention provides an artificial turf tufted base fabric, which can not only increase the warp strength of artificial turf, but also improve the bonding force between the adhesive and the base fabric, and solve the The problem of glue loss and small peeling force at the joints in the lawn ensure the competitiveness of the product.

In order to achieve the above object, the present invention adopts the following technical solutions:

An artificial turf tufted base fabric includes a base fabric and a yarn, and the base fabric and the yarn are integrally processed and formed by a seam allowance process.

Preferably, in the above-mentioned artificial turf tufted base fabric, the base fabric is selected from a single-layer PP woven fabric, a double-layer PP woven fabric, a non-woven fabric or a non-woven composite PP woven fabric.

Preferably, in the above-mentioned artificial turf tufting base fabric, the base fabric has a gram weight of 50-400 g/m ² .

The beneficial effects of the above technical solutions are: the strength of the artificial turf tufted base fabric is mainly linearly related to the gram weight of the base cloth. If the gram weight of the tufted base cloth is lower than 50g/m ² , the turf has poor strength and cannot meet the requirements of the national standard. ; If the gram weight of the tufted base fabric is higher than 400g/m ² , the base fabric is too thick, and the tufting production process is easy to break the needle, which affects the production efficiency. After a lot of experiments, the optimal grammage range of turf tufting base cloth is 50-400g/m ² .

Preferably, in the above-mentioned artificial turf tufting base fabric, the yarn is selected from polypropylene filament, polyester filament, acrylic filament, spandex filament, nylon filament or cotton thread.

The beneficial effects of the above technical solutions are: the yarns involved in the above can achieve a lower shrinkage rate through oven heat setting or steam setting treatment, and the recovery rate of the base fabric itself can be reduced after the sewing process is produced.

Preferably, in the above-mentioned artificial turf tufting base fabric, the weft density of the yarn is 50-1200 rows/m, and the warp density of the yarn is 100-300 needles/m;

Further, the weft density of the yarn is 200-500 rows/m, and the warp density of the yarn is 100-150 needles/m.

Preferably, in the above-mentioned artificial turf tufting base fabric, the specification of the yarn is 30-1200D;

Further, the specification of the yarn is 50-300D, and even more preferably, the specification of the yarn is 100-200D.

The beneficial effects of the above technical solutions are: the specification of the yarn is 30-1200D, when the yarn specification is lower than 30D, the yarn strength is low, the production process is easy to break the yarn, and the yarn below 30D contributes to the adhesion of the latex If the yarn strength is higher than 1200D, the excessive gram weight of the yarn will not only affect the production efficiency, but also the production of the hem of the yarn with heavy gram weight will cause There are voids on the surface of the base fabric, which will increase the latex infiltration and precipitation during the gluing process and the leakage of glue.

Before the application of the present invention, the problem of easy cracking at the joints of latex was solved by adding a layer of mesh between the latex and the tufted base cloth. However, after adding a layer of mesh, the amount of latex needed to increase. 1.5 times of the original, because the increase in the amount of glue makes the bottom of the lawn easy to crack and the degumming phenomenon is aggravated, and the tufted base cloth of the present invention can achieve the same effect, so that the amount of glue does not increase.

The invention also discloses a preparation method of the above-mentioned artificial turf tufted base fabric, comprising the following steps:

(1) Yarn heat setting treatment

Put the yarn in an oven at 150-200℃ for heat setting, and the heat setting time is 12-24h;

Or put the yarn into water vapor for moist heat setting, the setting time is 12h-24h, and the temperature is 150℃-200℃;

(2) Warping the heat-set yarn, and then sewing the yarn to the base fabric through a sewing machine to obtain a tufted base fabric.

Or the preparation method of the above-mentioned artificial turf tufted base cloth comprises the following steps:

(1) Warp the yarn, and then sew the yarn to the base fabric through the sewing machine;

(2) the base cloth obtained in step (1) is subjected to heat setting treatment by an oven,

Or hot rolling and shaping by hot rolling rolls to obtain tufted base fabric;

The temperature of the oven is 160°C-200°C, and the temperature of the hot roller is 150°C-180°C.

Since the base fabric directly contacts the heating surface when the hot roll is used for setting, the temperature of the hot roll setting is slightly lower than the oven heat setting temperature.

The invention also discloses an artificial turf, comprising the above-mentioned artificial turf tufting base fabric, and further comprising: artificial grass filaments and a binder; wherein one side of the tufting base fabric is tufted with the artificial grass filaments, and the other side is tufted. Apply the adhesive.

Preferably, in the above-mentioned artificial turf, the binder is carboxylated styrene-butadiene latex or PU latex.

As can be seen from the above technical solutions, compared with the prior art, the present invention discloses an artificial turf tufted base fabric and a lawn produced by the same, which has the following advantages:

(1) The base fabric of the single-layer PP woven fabric and the double-layer PP woven fabric product is woven with PP tapes, of which the PP tapes are non-polar materials, which are mixed with carboxylated styrene-butadiene latex and PU latex with polar groups. The surface adhesion is poor, and the tufted base fabric of the present invention is used, wherein the yarn has the function of adsorbing latex, which can increase the adhesion force of the latex on the surface of the tufted base fabric, and improve the cracking, degumming and seaming of the latex bottom and back. easy cracking problem;

(2) The yarns used in the present invention all have the characteristics of multiple strands, which can play the role of sucking glue to fix and absorb latex, increase the adhesion force of the latex on the surface of the tufted base cloth, and improve the cracking of the latex bottom and back. The problems of degumming and easy cracking at the joints. Further, except for polypropylene filaments, they all have polar groups. At the same time, the binder used in artificial turf also has polar groups, because both have strong polar groups. The polarity can be well bonded by the dual effects of adsorption and polar groups;

(3) The problem of easy cracking at the joints of latex is solved by adding a layer of mesh between the latex and the tufted base fabric. After adding a layer of mesh, the amount of latex should be increased to the original 1.5 Because the increase in the amount of glue makes the bottom of the lawn easy to crack and the degumming phenomenon is aggravated, and the tufted base fabric of the present invention can achieve the same effect under the condition that the amount of glue does not increase, which can completely solve the problem in the existing lawn industry. At the same time, it can also increase the warp strength of artificial turf, improve product cost performance, and increase market competitiveness.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

Figure 1 is a schematic diagram of the structure of the tufted base cloth provided by the present invention.

In the picture:

1 is yarn, 2 is base cloth.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIG. 1 , the present invention provides an artificial turf tufting base fabric, which includes a base fabric 2 and a yarn 1, and the base fabric 2 and the yarn 1 are integrally processed and formed by a seam allowance process.

In order to further optimize the above technical solution, the base fabric 2 is one of a single-layer PP woven fabric, a double-layer PP woven fabric, a non-woven fabric or a non-woven composite PP woven fabric.

In order to further optimize the above technical solution, the 2-gram weight of the base fabric is 50-400 g/m ² .

In order to further optimize the above technical solution, the yarn 1 is one of polypropylene filament, polyester filament, acrylic filament, spandex filament, nylon filament or cotton thread.

In order to further optimize the above technical solution, the weft density of the yarn 1 is 50-1200 rows/m, and the warp density of the yarn 1 is 100-300 needles/m.

In order to further optimize the above technical solution, the specification of the yarn 1 is 30-1200D.

And an artificial turf produced by using a tufted base cloth, comprising a tufted base cloth, artificial grass filaments and an adhesive, wherein one side of the tufted base cloth is tufted with artificial grass filaments, and the other side is coated with an adhesive.

In order to further optimize the above technical scheme, the binder is carboxylated styrene-butadiene latex or PU latex.

Example 1

The single ^- layer PP woven fabric of 130g/m2 and the polyester filament yarn of 50D are selected, and the yarn is needle-punched on the PP base fabric according to the density of 420 rows/m and 150 needles/m. The base fabric is heat-set through an oven.

The artificial grass silk is tufted on the obtained tufted base fabric, and the carboxylated styrene-butadiene latex is coated on the side of the tufted base fabric away from the artificial grass silk to manufacture artificial turf.

The radial strength of the tufted base fabric was measured, and the artificial turf produced by the tufted base fabric was used as a seam experiment to test the peeling force at the seam.

Test method for backside performance evaluation: Cut 20cm*20cm lawn and put it in a ziplock bag, add 500g of silica desiccant, and observe the carboxylated styrene-butadiene latex backside after 10 days. See Table 1 for specific data.

Example 2

The single ^- layer PP woven fabric of 130g/m2 and the polyester filament yarn of 500D are selected. According to the density of 210 rows/m and 100 needles/m, the yarns are needle-punched on the PP base fabric, and the tufted tufted fabric is produced. The base fabric is heat-set through an oven.

Artificial grass silk is tufted on the obtained base fabric, and carboxylated styrene-butadiene latex is coated on the side of the tufted base fabric away from the artificial grass silk to manufacture artificial turf.

The radial strength of the tufted base fabric was measured, and the artificial turf produced by the tufted base fabric was used as a seam experiment to test the peeling force at the seam.

The performance evaluation method of the bottom and back is the same as that of Example 1, and the specific data are shown in Table 1.

Example 3

Select 120g/m ² non-woven fabric, 100D polyester filament yarn, sew on the PP base fabric by needle punching at a density of 504 lines/m, 200 needles/m, and pass the produced tufted base fabric through Oven for heat setting.

Artificial grass silk is tufted on the obtained base fabric, and carboxylated styrene-butadiene latex is coated on the side of the tufted base fabric away from the artificial grass silk to manufacture artificial turf.

The radial strength of the tufted base fabric was measured, and the artificial turf produced by the tufted base fabric was used as a seam experiment to test the peeling force at the seam.

The performance evaluation method of the bottom and back is the same as that in Example 1, and the specific data are shown in Table 1.

Example 4

Use 100g/m ² single-layer PP woven fabric and 60g/m ² non-woven fabric, 1080D polyester filament yarn, according to the density of 252 lines/m, 150 needles/m by needle punching on the non-woven composite PP On the woven cloth, the produced tufted base cloth is subjected to heat setting treatment through an oven.

Artificial grass silk is tufted on the obtained base fabric, and carboxylated styrene-butadiene latex is coated on the side of the tufted base fabric away from the artificial grass silk to manufacture artificial turf.

The radial strength of the tufted base fabric was measured, and the artificial turf produced by the tufted base fabric was used as a seam experiment to test the peeling force at the seam.

The performance evaluation method of the bottom and back is the same as that of Example 1, and the specific data are shown in Table 1.

Example 5

The 100D polypropylene filament yarn is heat-set first, and double-layer PP woven fabric is used. The heat-set 100D polypropylene filament yarn is woven with two layers of PP single-layer at a density of 420 rows/m and 150 needles/m. The cloth is sewn into one piece.

Artificial grass silk is tufted on the obtained base fabric, and carboxylated styrene-butadiene latex is coated on the side of the tufted base fabric away from the artificial grass silk to manufacture artificial turf.

The radial strength of the tufted base fabric was measured, and the artificial turf produced by the tufted base fabric was used as a seam experiment to test the peeling force at the seam.

The performance evaluation method of the bottom and back is the same as that of Example 1, and the specific data are shown in Table 1.

Example 6

The 200D polypropylene filament yarn is heat-set first, and double-layer PP woven fabric is used. The heat-set 100D polypropylene filament yarn is woven with two layers of PP single layer at a density of 1000 rows/m and 150 needles/m. The cloth is sewn into one piece.

Artificial grass silk is tufted on the obtained base fabric, and PU latex is coated on the side of the tufted base fabric away from the artificial grass silk to manufacture artificial turf.

The radial strength of the tufted base fabric was measured, and the artificial turf produced by the tufted base fabric was used as a seam experiment to test the peeling force at the seam.

The performance evaluation method of the bottom and back is the same as that of Example 1, and the specific data are shown in Table 1.

Example 7

The 600D nylon filament yarn is heat-set first, and double-layer PP woven fabric is used. The heat-set 100D polypropylene filament yarn is woven into two layers of PP single-layer at a density of 420 rows/m and 150 needles/m. The cloth is sewn into one piece.

Artificial grass silk is tufted on the obtained base fabric, and PU latex is coated on the side of the tufted base fabric away from the artificial grass silk to manufacture artificial turf.

The radial strength of the tufted base fabric was measured, and the artificial turf produced by the tufted base fabric was used as a seam experiment to test the peeling force at the seam.

The performance evaluation method of the bottom and back is the same as that of Example 1, and the specific data are shown in Table 1.

Example 8

The 1200D cotton thread is heat-set first, and the double-layer PP woven fabric is selected. The heat-set 1200D cotton thread is sewed into a whole according to the density of 420 rows/m and 150 needles/m.

Artificial grass silk is tufted on the obtained base fabric, and PU latex is coated on the side of the tufted base fabric away from the artificial grass silk to manufacture artificial turf.

The radial strength of the tufted base fabric was measured, and the artificial turf produced by the tufted base fabric was used as a seam experiment to test the peeling force at the seam.

The performance evaluation method of the bottom and back is the same as that of Example 1, and the specific data are shown in Table 1.

Comparative Example 1

100g/m ² single-layer PP base cloth is selected, artificial grass silk is tufted on the single-layer base cloth, and the carboxylated styrene-butadiene latex is coated on the side away from the artificial grass silk.

The radial strength of the tufted base fabric was measured, and the artificial turf produced by the tufted base fabric was used as a seam experiment to test the peeling force at the seam.

Test method for performance evaluation of the bottom and back: cut the lawn of 20cm*20cm and put it into a ziplock bag, add 500g of silica desiccant, and observe the bottom of the carboxylated styrene-butadiene latex after 10 days. See Table 1 for specific data.

Comparative Example 2

Use 100g/m2 single ^- layer PP base cloth, tuft the artificial grass silk on the single-layer base cloth, and coat the PU latex on the side away from the artificial grass silk.

The radial strength of the tufted base fabric was measured, and the artificial turf produced by the tufted base fabric was used as a seam experiment to test the peeling force at the seam.

Test method for the performance evaluation of the bottom and back: cut a 20cm*20cm lawn and put it in a ziplock bag, add 500g of silica desiccant, and observe the PU latex bottom after 10 days. See Table 1 for specific data.

Table 1 Experimental data

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. As for the solutions disclosed in the examples, since they correspond to the methods disclosed in the examples, the descriptions are relatively simple, and the relevant parts can be referred to the description of the method section.

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An artificial turf tufted backing, comprising: the base cloth and the yarns are integrally processed and formed through a hemming process.

2. The artificial turf tufting substrate of claim 1, wherein said substrate is selected from the group consisting of a single layer PP woven fabric, a double layer PP woven fabric, a non-woven fabric and a non-woven fabric composite PP woven fabric.

3. The tufted backing for an artificial lawn according to claim 1, wherein the backing has a grammage of 50-400g/m²。

4. The artificial turf tufting substrate of claim 1, wherein said yarns are selected from polypropylene filaments, polyester filaments, acrylic filaments, spandex filaments, polyamide filaments or cotton threads.

5. The tufting base fabric for an artificial lawn as claimed in claim 1, wherein said yarns have a weft density of 50-1200 rows/m and a warp density of 100-300 needles/m.

6. The artificial turf tufting substrate of claim 1 or 5, wherein said yarn has a gauge of 30-1200D.

7. A method for preparing the artificial turf tufting substrate according to any one of claims 1 to 6, comprising the steps of:

(1) heat setting treatment of yarn

The yarn is placed in an oven with the temperature of 150-;

or putting the yarns into steam for damp-heat setting for 12-24h at 150-200 ℃;

(2) warping the yarns subjected to heat setting treatment, and then sewing the yarns to the base fabric through edge sewing equipment to obtain the tufted base fabric.

8. A method for preparing the artificial turf tufting substrate according to any one of claims 1 to 6, comprising the steps of:

(1) warping the yarns, and sewing the yarns to the base cloth through edge sewing equipment;

(2) carrying out heat setting treatment on the base cloth obtained in the step (1) through an oven,

or hot rolling and shaping by a hot roller to obtain the tufted base fabric;

wherein the oven temperature is 160-200 ℃, and the hot roll temperature is 150-180 ℃.

9. An artificial lawn, comprising the artificial lawn tufting substrate of any one of claims 1 to 6, and further comprising: artificial grass filaments and binders; wherein the artificial grass filaments are tufted on one side of the tufting base cloth, and the adhesive is coated on the other side of the tufting base cloth.

10. An artificial lawn according to claim 9, wherein the binder is carboxylated styrene-butadiene latex or PU latex.

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