High permeability water-based fabric, artificial turf containing the same and preparation method thereof

Abstract

The invention discloses a high-permeability water-based fabric and a high-permeability water-resistant artificial turf containing the same, wherein the high-permeability water-based fabric is formed by cross-weaving warp yarns and weft yarns, and the warp yarns and / or weft yarns contain yarn A, and the thickness of yarn A is 0.08-0.5mm; or contain yarn B, and the thickness of yarn B is 0.03-0.06mm; the high-permeability water-based fabric is obtained by weaving in a regular or irregular arrangement. The application of the high-permeability water-based fabric to artificial turf not only has excellent water permeability and can meet the use requirements; and the artificial turf designed by the invention does not need to be punched with an electric soldering iron, can effectively prevent the growth of natural weeds, and at the same time avoids the problems of wear of the adhesive layer caused by the leakage of quartz sand during paving, and the preparation method is simple, can save manpower and cost, and is conducive to market promotion and industrial production.

Description

Technical Field

[0001] The invention relates to the technical field of artificial turf, and in particular to a high-permeability water-based fabric, a preparation method of the high-permeability water-based fabric, and an artificial turf containing the same and a preparation method thereof. Background Art

[0002] In April 1966, the world's first artificial turf was born in the Astrodome Stadium in Houston, USA. Since then, artificial turf has officially entered the world stage. With the continuous development of artificial turf manufacturing technology, its appearance and feel are getting closer and closer to natural turf, but it is simpler than natural turf in terms of paving and maintenance, and has low maintenance costs and is less affected by the environment, weather, and region. With the continuous expansion of artificial turf application scenarios, more and more people have accepted it and it is paved in football fields, courtyards, roofs, office buildings and other places. Artificial turf is mainly composed of three parts, namely synthetic grass fibers that imitate grass leaves, a base fabric for implanting synthetic fibers, and a backing layer that plays a fixing role. During use, in addition to paying attention to the appearance and mechanical properties of the backing, artificial turf also pays attention to its water permeability.

[0003] In order to solve the water seepage problem, current artificial turf products use electric iron punching method after the back glue process to ensure the water seepage rate of the product. However, the holes punched by the electric iron will allow natural weeds to grow during the long-term use of the artificial turf, causing trouble for subsequent maintenance. In addition, some artificial turfs have a sand filling process when paving the site. Quartz sand will leak through the holes to the bottom of the lawn and contact the back glue layer. During the long-term use of the lawn, the presence of quartz sand aggravates the wear of the back glue layer. In the long run, the back glue layer is prone to fall off, the coverage is not good, and eventually the grass fibers fall off.

[0004] Therefore, it is necessary to develop an artificial turf without holes and with excellent water permeability, and improve the durability of the backing to meet market demand. Summary of the invention

[0005] The invention discloses a high-permeability water-based fabric and a high-permeability water-resistant durable artificial turf containing the same, which has excellent water permeability and can meet the use requirements; at the same time, the artificial turf designed by the invention does not need to be punched with an electric soldering iron, which can not only prevent the growth of natural weeds, but also avoid the problems of wear of the adhesive layer caused by the leakage of quartz sand during paving; the preparation method of the invention is simple, can save manpower and cost, and is conducive to market promotion and industrial production.

[0006] In order to achieve the above objectives, one of the objectives of the present invention is to provide a high permeability water-based fabric.

[0007] A high-permeability water-based fabric is formed by cross-weaving of warp yarns and weft yarns, and the warp yarns and / or weft yarns contain yarn A, and the thickness of the yarn A is 0.08-0.5 mm.

[0008] The beneficial effects of adopting the above technical solution include at least: when the yarn thickness is less than 0.08mm, during the weaving process, the yarn is too thin to be stretched out at the intersection of the warp and weft yarns to form effective holes to meet the water permeability performance; when the yarn thickness is greater than 0.5mm, the yarn cannot be cut and drawn to ensure stable production, and the yarn cannot be woven subsequently because it is too thick.

[0009] Furthermore, the thickness of the yarn A is preferably 0.1-0.3 mm.

[0010] Preferably, the warp yarn and / or weft yarn contains yarn B, and the thickness of the yarn B is 0.03-0.06 mm.

[0011] Preferably, the warp yarn is yarn B and the weft yarn is yarn A.

[0012] Preferably, the warp yarn is yarn B, the weft yarn is yarn A and B, and the weft yarns are woven alternately in an ABAB manner, or in other regular or irregular manners.

[0013] Preferably, the weft yarn is yarn B and the warp yarn is yarn A.

[0014] Preferably, the weft yarn is yarn B, the warp yarn is yarn A and B, and the warp yarns are alternately arranged and woven in an ABAB manner, or in other regular or irregular manners.

[0015] Furthermore, the warp yarns are of one thickness, the weft yarns are of three thicknesses, and the weft yarns are arranged and combined in a regular or irregular manner for weaving;

[0016] Or the weft yarns are of one thickness, the warp yarns are of three thicknesses, and the warp yarns are arranged and combined in a regular or irregular manner for weaving;

[0017] Or the warp yarns have two thicknesses, the weft yarns have three thicknesses, and the warp and weft yarns are arranged and combined in a regular or irregular manner for weaving;

[0018] Or the weft yarns have two thicknesses, the warp yarns have three thicknesses, and the warp and weft yarns are arranged, combined and woven in a regular or irregular manner; by analogy, as long as suitable yarns of different thicknesses can be selected and arranged, combined and woven in a regular or irregular manner, the weaving method that forms effective holes between the yarns to improve the water permeability is within the scope of the present invention.

[0019] Preferably, the warp yarn and the weft yarn are both yarn A.

[0020] Preferably, the width of the warp yarn is 0.5-3 mm;

[0021] The width of the weft yarn is 0.5-4 mm;

[0022] The weaving density of the warp yarn is 400-2400 yarns / m;

[0023] The weaving density of the weft yarn is 300-2400 yarns / m.

[0024] The beneficial effects of adopting the above technical solution include at least: when the width of the warp yarn or the weft yarn is less than 0.5mm, it is impossible to weave a base fabric with stable size; when the warp yarn width is greater than 3mm or the weft yarn width is greater than 4mm, since the yarn is too wide, folding will occur during weaving and the flatness of the base fabric cannot be guaranteed, so it cannot be produced; when the warp yarn weaving density is less than 400 yarns / meter and the weft yarn weaving density is less than 300 yarns / meter, the produced base fabric has poor dimensional stability and cannot meet the use requirements; when the warp yarn weaving density is greater than 2400 yarns / meter and the weft yarn weaving density is greater than 2400 yarns / meter, thinner yarns are required for weaving production, and there will also be problems with dimensional stability.

[0025] Further, the width of the warp yarn is 1-2 mm;

[0026] The width of the weft yarn is 1-3 mm;

[0027] The weaving density of the warp yarn is 600-1200 yarns / m;

[0028] The weaving density of the weft yarn is 400-1200 yarns / m.

[0029] Preferably, the color of the yarn is one or more of black, green, white, blue, purple, orange, yellow and brown.

[0030] The second object of the present invention is to provide a method for preparing a high-permeability water-based fabric, which specifically comprises the following steps:

[0031] (1) uniformly mixing one or more of polyethylene resin, polypropylene resin, polyamide resin, and polyethylene terephthalate resin with a masterbatch and a processing aid, extruding the mixture with a screw extruder, cutting and drawing the mixture into yarns of desired width and thickness, and winding the yarns after shaping for standby use;

[0032] (2) The warp and weft yarns are placed on a weaving machine according to the designed weaving density and arrangement to weave the desired high-permeability water-based fabric.

[0033] The third object of the present invention is to provide a highly water-permeable and durable artificial turf, comprising a base fabric, grass fibers and adhesive backing, wherein the base fabric comprises the highly water-permeable base fabric; the grass fibers are tufted on the base fabric, and the adhesive backing is coated on the back of the base fabric.

[0034] Preferably, the base fabric is a layer of the highly permeable water base fabric;

[0035] Or, the base fabric is a combination of a layer of the high permeability base fabric and a layer of mesh fabric;

[0036] Or, the base fabric is a combination of the high water permeability base fabric and any non-woven fabric.

[0037] Preferably, the back glue is composed of original glue, filler and foaming agent;

[0038] The raw glue is selected from one or more of styrene-butadiene glue, styrene-acrylic glue, ethylene-vinyl acetate glue, acrylic glue, epoxy glue and polyurethane glue;

[0039] The mass ratio of the original glue to the filler is 8:2 to 2:8;

[0040] The foaming agent is 0.3-0.7% of the total mass of the original glue and filler;

[0041] In the back gluing process, the density of the glue after foaming is controlled to be 0.8 to 0.2 times the density of the glue before foaming.

[0042] The beneficial effects of adopting the above technical solution include at least: the purpose of adding a foaming agent to the glue is to make the glue easier to foam, and the foaming is more stable and the foam is finer, which is conducive to forming enough interconnected holes inside the glue layer after curing, thereby improving the water permeability of the glue layer.

[0043] When the ratio of original glue to filler is greater than 8:2, due to excessive original glue, the glue film is too dense after later curing, affecting the water permeability of the entire lawn; when the amount of foaming agent added is less than 0.3%, the foaming performance of the glue is poor and the ideal foaming density cannot be achieved; when the foaming density ratio is greater than 0.8, there are not enough holes inside the glue layer, affecting the water permeability; and when the ratio of original glue to filler is less than 2:8, the amount of foaming agent added is greater than 0.7%, the foaming density ratio is less than 0.2, and the glue film layer has more holes after later curing, which can ensure a good water permeability effect for the entire lawn, but due to excessive fillers and low density, it will affect the mechanical properties of the lawn backing glue layer.

[0044] Furthermore, the mass ratio of the original glue to the filler is 7:3 to 3:7;

[0045] The foaming agent is 0.4-0.6% of the total mass of the original glue and filler;

[0046] In the back gluing process, the density of the glue after foaming is controlled to be 0.7 to 0.3 times the density of the glue before foaming.

[0047] Preferably, the foaming agent is selected from one or more of sodium dodecyl sulfate, sodium dodecyl sulfonate, sodium dodecylbenzene sulfonate, sodium dodecyl diphenyl ether disulfonate, sodium α-olefin sulfonate, and sodium rosin acid;

[0048] The filler is selected from one or more of calcium carbonate, barium sulfate, mica powder, aluminum hydroxide, talc, and silicon dioxide.

[0049] Furthermore, the glue formula for the back glue may also include a color paste and a thickener, the color paste is selected from one or more of black paste, red paste, green paste, orange paste, blue paste, and purple paste, and the thickener is selected from one or more of polyacrylic acid, cellulose, and polyurethane thickeners. The color paste is added to color the back glue layer to meet the color requirements of different customers, and the thickener is added to adjust the viscosity of the glue so that the problem of glue seepage is less likely to occur during the production of the back glue.

[0050] A fourth object of the present invention is to provide a method for preparing a highly water-permeable and durable artificial turf, comprising the following steps:

[0051] 1) Wire drawing process: polyethylene resin and / or polypropylene resin, masterbatch and additives are uniformly mixed into a mixture, and the mixture is extruded and drawn by a single screw extruder to form artificial turf fibers;

[0052] 2) Tufting process: The twisted artificial grass yarn is tufted on the base fabric with a tufting machine at a specified row spacing and needle spacing to form an artificial turf semi-finished product;

[0053] 3) Back glue process: Apply glue to the back of the semi-finished artificial turf product and solidify it in an oven to obtain the artificial turf.

[0054] In summary, the high permeability base fabric designed by the present invention is designed with warp and weft yarns of suitable width and thickness, and is woven in a combination mode and at a certain density, so that effective holes can be formed at the intersection of the warp and weft directions, thereby improving the water permeability of the base fabric. At the same time, the high permeability base fabric designed by the present invention is applied to artificial turf, and a high permeability artificial turf can be prepared without the need for punching with an electric soldering iron, thereby effectively avoiding the growth of natural weeds in later use and the leakage of quartz sand during paving. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Example 1

[0057] The preparation of high permeability water-based fabric includes the following steps:

[0058] (1) 88 parts of polypropylene, 10 parts of masterbatch and 2 parts of additives were mixed uniformly according to weight proportions, and the mixture was extruded by a screw extruder and then cut and drawn;

[0059] Among them, the weft yarn thickness is 0.08mm and the width is 1.5mm;

[0060] The warp yarn thickness is 0.04mm and the width is 1.5mm. After being shaped, it is rolled up for use.

[0061] (2) The warp and weft yarns are placed on a weaving machine at a weaving density of 780 yarns / m to weave the desired high-permeability water-based fabric.

[0062] The preparation of high water permeability durable artificial turf includes the following steps:

[0063] 1) 85 parts of polyethylene, 10 parts of masterbatch and 5 parts of additives are mixed evenly according to the weight ratio, and the mixture is extruded and drawn by a screw extruder to form artificial turf yarn;

[0064] 2) Tufting the twisted artificial grass yarns on the high permeability bottom cloth with a tufting machine at a specified row spacing and needle spacing to form an artificial turf semi-finished product;

[0065] 3) Stirring butadiene styrene glue and calcium carbonate in a mass ratio of 5:5 to obtain a finished glue after 30 minutes, and then adding 0.5% of the total mass of sodium dodecyl sulfate to the finished glue and continuing to stir for 10 minutes to obtain the finished glue, and adjusting the process parameters of the finished glue by a foaming machine to foam the finished glue, and controlling the density after foaming to be 0.5 times the density before foaming, and applying the foamed glue to the bottom back of the semi-finished artificial turf, and curing in an oven to obtain a highly permeable and durable artificial turf.

[0066] Example 2

[0067] Example 2 is the same as Example 1, except that in step (1), the weft yarn thickness is 0.1 mm and the width is 1.5 mm.

[0068] Example 3

[0069] Example 3 is the same as Example 1, except that in step (1), the weft yarn thickness is 0.2 mm and the width is 1.5 mm.

[0070] Example 4

[0071] Example 4 is the same as Example 1, except that in step (1), the weft yarn thickness is 0.3 mm and the width is 1.5 mm.

[0072] Example 5

[0073] Example 5 is the same as Example 1, except that in step (1), the weft yarn thickness is 0.4 mm and the width is 1.5 mm.

[0074] Example 6

[0075] Example 6 is the same as Example 1, except that in step (1), the weft yarn thickness is 0.5 mm and the width is 1.5 mm.

[0076] Comparative Example 1

[0077] Comparative Example 1 is the same as Example 1, except that in step (1), the weft yarn thickness is 0.04 mm and the width is 1.5 mm.

[0078] Comparative Example 2

[0079] Comparative Example 2 is the same as Example 1, except that in step (1), the weft yarn thickness is 0.06 mm and the width is 1.5 mm.

[0080] Comparative Example 3

[0081] The preparation of high permeability water-based fabric includes the following steps:

[0082] (1) 88 parts of polypropylene, 10 parts of masterbatch and 2 parts of additives were mixed uniformly according to weight proportions, and the mixture was extruded by a screw extruder and cut into weft yarns with a thickness of 0.6 mm and a width of 1.5 mm and warp yarns with a thickness of 0.04 mm and a width of 1.5 mm, and then rolled up for standby use after shaping;

[0083] (2) The warp and weft yarns are placed on a braiding machine and woven at a weaving density of 780 yarns / m.

[0084] Since the thickness of the weft yarn is too thick, it is impossible to ensure stable production of high-permeability water-based fabrics.

[0085] Comparative Example 4

[0086] The preparation of the base fabric for artificial turf includes the following steps:

[0087] (1) 88 parts of polypropylene, 10 parts of masterbatch and 2 parts of additives were mixed uniformly according to weight proportions, and the mixture was extruded by a screw extruder and then cut and drawn into a weft yarn with a thickness of 0.04 mm and a width of 1.5 mm and a warp yarn with a thickness of 0.04 mm and a width of 1.5 mm, and then rolled up for standby use after shaping;

[0088] (2) The warp and weft yarns are placed on a weaving machine at a weaving density of 780 yarns / m to weave the desired artificial turf base fabric.

[0089] The preparation of artificial turf includes the following steps:

[0090] 1) 85 parts of polyethylene, 10 parts of masterbatch and 5 parts of additives are mixed evenly according to the weight ratio, and the mixture is extruded and drawn by a screw extruder to form artificial turf yarn;

[0091] 2) Tufting the twisted artificial grass yarns on the base fabric with a tufting machine at a specified row spacing and needle spacing to form an artificial turf semi-finished product;

[0092] 3) Stirring and mixing styrene-butadiene glue and calcium carbonate in a ratio of 5:5, and obtaining finished glue after 30 minutes, and applying the finished glue to the bottom of the semi-finished lawn, and curing in an oven to obtain artificial turf;

[0093] 4) Punch holes in the prepared artificial turf according to the specifications of 10cm×10cm.

[0094] Water penetration performance test:

[0095] The water permeability of all samples was tested according to the method in FIFA Quality Programme for Football Turf-2015.

[0096] Before testing, place the sample at 23±2℃ for at least 4h.

[0097] Clamp the sample to be tested with two metal or plastic rings with an inner diameter of 300mm±2mm. At the same time, place a supporting grid under the clamped sample to prevent the sample from being deformed by a large amount of water injection during the water seepage test. This grid must ensure that the maximum deformation from the outside of the ring to the center does not exceed 5mm. After clamping, use sealant to seal the gap to prevent water leakage. After the test device is completed, inject 5L of water into the ring to wet the sample to be tested, and check whether the test device is leaking. If there is any leakage, reseal the device. This leak detection process needs to be carried out for at least 30 minutes.

[0098] After the preparation work is done, make sure that the test device is in a horizontal state before the test begins, then inject a large amount of water into the device, and ensure that the water level is 70-90mm higher than the bottom back height of the sample to be tested. When the water level drops to 30mm from the bottom back height, start timing and record the time taken to drop from 30mm to 10mm, accurate to 0.1 second. If the penetration rate is slow, stop the test after 30 minutes.

[0099] Repeat the test twice more according to the above method and take the average of the last two results.

[0100] The water infiltration rate (I c )calculate:

[0101] I c =F wc / tc

[0102] in:

[0103] F wc is the height of the water level drop (mm), usually 20mm;

[0104] t c is the time taken for the water level to drop to a certain height (h);

[0105] Method for determining water seepage performance:

[0106] At present, conventionally produced lawns in the industry need to be punched with a soldering iron after the backing process to solve the water seepage problem. The water seepage performance of such lawns is tested according to FIFA's testing method. The water seepage rate is within 8000-12000mm / h, which can basically meet the demand. However, in order to avoid a large amount of water accumulation in scenes such as heavy rain, the water seepage rate needs to reach more than 15000mm / h. Therefore, lawns with a water seepage rate of more than 15000mm / h are considered to be high water seepage lawns.

[0107] Durability performance test:

[0108] Initial pull-off force:

[0109] The test was carried out using an electronic universal material testing machine in accordance with the method in standard ISO4919. Specifically, a newly prepared test sample of 20 cm*20 cm was cut and placed in an environment with a relative humidity of (65±4)% and a temperature of (20±2)°C for 24 hours. The test sample was placed on the electronic universal testing machine and half a bunch of grass fibers were clamped with pliers perpendicular to the direction of the sample. The machine was turned on and the maximum force was recorded as the pull-out force of the grass fibers after the grass fibers were completely pulled out. The pull-out force value of each sample was based on the average value of 10 sample data.

[0110] Pull-off force after long-term use:

[0111] To simulate the actual use of lawns, a 40cm*80cm newly prepared sample was subjected to a rolling wear test using a Lisport wear tester. The lawn bottom was filled with 3kg of gravel. The wear test was stopped after rolling for 30,000 turns. 100kg of water was poured on the sample to be tested. After it was allowed to penetrate naturally for 1 minute, the Lisport wear tester was used to roll for 30,000 turns. After the wear test was completed, 100kg of water was poured on the sample to be tested and allowed to penetrate naturally for 1 minute. The water seepage and wear tests were carried out in this way until the wear test reached 300,000 turns. After the simulation experiment, the pull-off force test was carried out according to the method in ISO4919.

[0112] Coverage of the back after long-term use:

[0113] After the samples were subjected to simulated long-term use, the coverage of the adhesive layer on the back of the base was observed, and good coverage without adhesive layer peeling was judged as ☆☆☆, general coverage with partial adhesive layer peeling was judged as ☆☆, and poor coverage with most of the adhesive layer peeling was judged as ☆.

[0114] According to the above-mentioned water permeability performance test and durability performance test methods, relevant tests were carried out on Examples 1-6 and Comparative Examples 1, 2, and 4. The results are shown in Table 1.

[0115] Table 1

[0116]

[0117] It can be seen from Examples 1 to 6 in Table 1 that when the selected weft yarn thickness is 0.08-0.5 mm, the prepared artificial turf has a good water permeability effect. When the artificial turf is subjected to a simulation test of actual use, since no holes are punched and the water permeability is good, the bottom back coverage and mechanical properties after the simulation test are good, especially when the weft yarn thickness is between 0.1-0.3 mm, the mechanical properties after the simulation test are excellent. Compared with other examples, Examples 5 and 6 have a decline in coverage and mechanical properties after long-term use, mainly because the weft yarn is too thick, resulting in excessive pores in the base fabric, and a small amount of quartz sand leakage.

[0118] From the situation of comparative examples 1 and 2, since the thickness of the weft yarn is less than 0.08 mm, no effective holes are formed at the intersection of the warp and weft yarns, resulting in poor water permeability. When the artificial turf is subjected to the actual use simulation test, the long-term water accumulation aggravates the aging of the adhesive layer, resulting in unsatisfactory bottom back coverage and mechanical properties after long-term use. From the situation of comparative example 4, even if the lawn has a certain degree of water permeability, due to the presence of the holes made by the electric soldering iron, a large amount of quartz sand leaks to the bottom back, and the bottom back is severely worn during use, and its coverage and mechanical properties are poor.

[0119] Example 7

[0120] Example 7 is the same as Example 1, except that in step (1), the weft yarn thickness is 0.25 mm and the width is 1.5 mm, and the warp yarn thickness is 0.04 mm and the width is 1.5 mm.

[0121] Example 8

[0122] Example 8 is the same as Example 1, except that step (1) the weft yarns of two thicknesses and the warp yarns of one thickness are drawn, and the two thicknesses of the weft yarns are respectively 0.25 mm thick and 1.5 mm wide and 0.04 mm thick and 1.5 mm wide; the warp yarn of one thickness is 0.04 mm thick and 1.5 mm wide; and step (2) the weft yarns of two thicknesses are alternately arranged and woven to obtain a high permeability bottom cloth.

[0123] Example 9

[0124] Example 9 is the same as Example 1, except that step (1) is drawing into warp yarns with a thickness of 0.25 mm and a width of 1.5 mm, and weft yarns with a thickness of 0.04 mm and a width of 1.5 mm.

[0125] Example 10

[0126] Example 10 is the same as Example 1, except that step (1) the wire is drawn into two thicknesses of warp yarn and one thickness of weft yarn, the two thicknesses of warp yarn are respectively 0.25mm thick, 1.5mm wide and 0.04mm thick, 1.5mm wide, and one thickness of weft yarn is 0.04mm thick, 1.5mm wide; and step (2) the two thicknesses of warp yarn are alternately arranged and woven to form a high permeability bottom cloth.

[0127] Embodiment 11

[0128] Example 11 is the same as Example 1, except that step (1) is drawing into warp yarns with a thickness of 0.25 mm and a width of 1.5 mm, and weft yarns with a thickness of 0.25 mm and a width of 1.5 mm.

[0129] According to the above-mentioned water permeability test and durability test methods, relevant tests were carried out on Examples 7-11, and the results are shown in Table 2.

[0130] Table 2

[0131]

[0132] It can be seen from Examples 7-11 in Table 2 that when the thickness of the warp and weft yarns selected is 0.08-0.5 mm and the artificial turf is woven according to the arrangement and combination method in the examples, it has excellent water permeability, and its bottom back coverage and mechanical properties after simulation testing are good.

[0133] Example 12

[0134] Example 12 is the same as Example 1, except that step (1) the warp yarn is drawn into a warp yarn with a thickness of 0.04 mm and a width of 0.5 mm, and a weft yarn with a thickness of 0.25 mm and a width of 2 mm; and step (2) the warp and weft yarns are placed on a weaving machine at a weaving density of 2400 warp yarns / m and 550 weft yarns / m to weave the desired high-permeability water-based fabric.

[0135] Embodiment 13

[0136] Example 13 is the same as Example 1, except that step (1) is drawing into warp yarn with a thickness of 0.04 mm and a width of 1 mm, and weft yarn with a thickness of 0.25 mm and a width of 2 mm; and step (2) the warp and weft yarns are placed on a weaving machine at a weaving density of 1200 warp yarns / m and 550 weft yarns / m to weave the desired high-permeability water-based fabric.

[0137] Embodiment 14

[0138] Example 14 is the same as Example 1, except that step (1) is drawing into warp yarn with a thickness of 0.04 mm and a width of 2 mm, and weft yarn with a thickness of 0.25 mm and a width of 2 mm; and step (2) the warp and weft yarns are placed on a weaving machine at a weaving density of 600 yarns / m for warp yarn and 550 yarns / m for weft yarn to weave the desired high-permeability water-based fabric.

[0139] Embodiment 15

[0140] Example 15 is the same as Example 1, except that step (1) the warp yarn is drawn into a warp yarn with a thickness of 0.04 mm and a width of 3 mm, and a weft yarn with a thickness of 0.25 mm and a width of 2 mm; and step (2) the warp and weft yarns are placed on a weaving machine at a weaving density of 400 yarns / m for the warp yarn and 550 yarns / m for the weft yarn to obtain the desired high-permeability water-based fabric.

[0141] Example 16

[0142] Example 16 is the same as Example 1, except that step (1) the warp yarn is drawn into a warp yarn with a thickness of 0.25 mm and a width of 2 mm, and a weft yarn with a thickness of 0.04 mm and a width of 0.5 mm; and step (2) the warp and weft yarns are placed on a weaving machine at a weaving density of 600 yarns / m for the warp yarn and 2400 yarns / m for the weft yarn to obtain the desired high-permeability water-based fabric.

[0143] Embodiment 17

[0144] Example 17 is the same as Example 1, except that step (1) the warp yarn is drawn into a warp yarn with a thickness of 0.25 mm and a width of 2 mm, and a weft yarn with a thickness of 0.04 mm and a width of 1 mm; and step (2) the warp and weft yarns are placed on a weaving machine at a weaving density of 600 yarns / m for the warp yarn and 1200 yarns / m for the weft yarn to obtain the desired high-permeability water-based fabric.

[0145] Embodiment 18

[0146] Example 18 is the same as Example 1, except that step (1) is drawing into warp yarn with a thickness of 0.25 mm and a width of 2 mm, and weft yarn with a thickness of 0.04 mm and a width of 3 mm; and step (2) the warp and weft yarns are placed on a weaving machine at a weaving density of 600 yarns / m for warp yarn and 400 yarns / m for weft yarn to obtain the desired high-permeability water-based fabric.

[0147] Embodiment 19

[0148] Example 19 is the same as Example 1, except that step (1) the warp yarn is drawn into a warp yarn with a thickness of 0.25 mm and a width of 2 mm, and a weft yarn with a thickness of 0.04 mm and a width of 4 mm; and step (2) the warp and weft yarns are placed on a weaving machine at a weaving density of 600 yarns / m for the warp yarn and 300 yarns / m for the weft yarn to obtain the desired high-permeability water-based fabric.

[0149] According to the above-mentioned water permeability test and durability test methods, relevant tests were carried out on Examples 12-19, and the results are shown in Table 3.

[0150] Table 3

[0151]

[0152]

[0153] It can be seen from Examples 12-15 in Table 3 that when the selected warp width is 0.5-3 mm and the warp weaving density is 400-2400 yarns / m, the prepared high water permeability durable artificial turf has excellent water permeability, and its bottom back coverage and mechanical properties after the simulation test are good. In particular, when the warp width is 1-2 mm and the warp weaving density is 600-1200 yarns / m, the prepared artificial turf can ensure excellent water permeability and mechanical properties after the simulation test, and also has good dimensional stability.

[0154] It can be seen from Examples 16-19 in Table 3 that when the selected weft yarn width is 0.5-4 mm and the weft yarn weaving density is 300-2400 yarns / m, the prepared high water permeability durable artificial turf has excellent water permeability, and its bottom back coverage and mechanical properties after the simulation test are good. In particular, when the warp yarn width is 1-3 mm and the warp yarn weaving density is 400-1200 yarns / m, the prepared artificial turf can ensure excellent water permeability and mechanical properties after the simulation test, and also has good dimensional stability.

[0155] Embodiment 20

[0156] Example 20 is the same as Example 1, except that step (1) is drawing into a weft yarn with a thickness of 0.25 mm and a width of 1.5 mm, and a warp yarn with a thickness of 0.04 mm and a width of 1.5 mm;

[0157] And step 3) the styrene-butadiene rubber and calcium carbonate are stirred and mixed in a mass ratio of 8:2.

[0158] Embodiment 21

[0159] Example 21 is the same as Example 1, except that step (1) is drawing into a weft yarn with a thickness of 0.25 mm and a width of 1.5 mm, and a warp yarn with a thickness of 0.04 mm and a width of 1.5 mm;

[0160] And step 3) the styrene-butadiene rubber and calcium carbonate are stirred and mixed in a mass ratio of 7:3.

[0161] Embodiment 22

[0162] Example 22 is the same as Example 1, except that step (1) is drawing into a weft yarn with a thickness of 0.25 mm and a width of 1.5 mm, and a warp yarn with a thickness of 0.04 mm and a width of 1.5 mm;

[0163] And step 3) stir and mix the styrene-butadiene rubber and calcium carbonate in a mass ratio of 3:7.

[0164] Embodiment 23

[0165] Example 23 is the same as Example 1, except that step (1) is drawing into a weft yarn with a thickness of 0.25 mm and a width of 1.5 mm, and a warp yarn with a thickness of 0.04 mm and a width of 1.5 mm;

[0166] And step 3) stir and mix the styrene-butadiene rubber and calcium carbonate in a mass ratio of 2:8.

[0167] Comparative Example 5

[0168] Comparative Example 5 is the same as Example 1, except that step (1) is drawing into a weft yarn with a thickness of 0.25 mm and a width of 1.5 mm, and a warp yarn with a thickness of 0.04 mm and a width of 1.5 mm;

[0169] And step 3) stir and mix the styrene-butadiene rubber and calcium carbonate in a mass ratio of 9:1.

[0170] Comparative Example 6

[0171] Comparative Example 6 is the same as Example 1, except that step (1) is drawing into weft yarns with a thickness of 0.25 mm and a width of 1.5 mm, and warp yarns with a thickness of 0.04 mm and a width of 1.5 mm;

[0172] And step 3) stir and mix the styrene-butadiene rubber and calcium carbonate in a mass ratio of 1:9.

[0173] According to the above-mentioned water permeability performance test and durability performance test methods, relevant tests were carried out on Examples 20-23 and Comparative Examples 5-6, and the results are shown in Table 4.

[0174] Table 4

[0175]

[0176]

[0177] It can be seen from Examples 20-23 in Table 4 that when the ratio of the original glue to the filler is between 8:2 and 2:8, the artificial turf prepared has good water permeability, and the bottom back coverage and mechanical properties after the simulation test are good.

[0178] It can be seen from Comparative Example 5 that when the ratio of the original glue to the filler is greater than 8:2, due to the excessive amount of original glue, the glue film is too dense after the later curing, which affects the water permeability of the entire lawn, and further affects the mechanical properties of the lawn after the simulation test. It can be seen from Comparative Example 6 that when the ratio of the original glue to the filler is less than 2:8, due to the excessive amount of filler, the mechanical properties of the glue layer will be affected, resulting in the lawn's pull-off force before and after the simulation is not very good, and the coverage of the backing after the simulation test is not ideal.

[0179] Embodiment 24

[0180] Example 24 is the same as Example 1, except that step (1) is drawing into a weft yarn with a thickness of 0.25 mm and a width of 1.5 mm, and a warp yarn with a thickness of 0.04 mm and a width of 1.5 mm;

[0181] and step 3) adding 0.3% of the total mass of the finished glue as a sodium dodecyl sulfate as a foaming agent and continuing stirring for 10 minutes to obtain a finished glue, using a foaming machine to adjust the process parameters to foam the finished glue, and controlling the density after foaming to be 0.8 times the density before foaming, brushing the foamed glue on the back of the semi-finished lawn, and curing in an oven to obtain a highly permeable and durable artificial turf.

[0182] Embodiment 25

[0183] Example 25 is the same as Example 1, except that step (1) is drawing into a weft yarn with a thickness of 0.25 mm and a width of 1.5 mm, and a warp yarn with a thickness of 0.04 mm and a width of 1.5 mm;

[0184] and step 3) adding 0.4% of the total amount of the finished glue as a foaming agent and continuing stirring for 10 minutes to obtain the finished glue, using a foaming machine to adjust the process parameters to foam the finished glue, and controlling the density after foaming to be 0.7 times the density before foaming, brushing the foamed glue on the back of the semi-finished lawn, and curing in an oven to obtain a highly permeable and durable artificial turf.

[0185] Embodiment 26

[0186] Example 26 is the same as Example 1, except that step (1) is drawing into a weft yarn with a thickness of 0.25 mm and a width of 1.5 mm, and a warp yarn with a thickness of 0.04 mm and a width of 1.5 mm;

[0187] and step 3) adding 0.6% of the total amount of the finished glue as sodium dodecyl sulfate as a foaming agent and continuing stirring for 10 minutes to obtain the finished glue, using a foaming machine to adjust the process parameters to foam the finished glue, and controlling the density after foaming to be 0.3 times the density before foaming, brushing the foamed glue on the bottom back of the semi-finished lawn, and curing in an oven to obtain a highly permeable and durable artificial turf.

[0188] Embodiment 27

[0189] Example 27 is the same as Example 1, except that step (1) is drawing into a weft yarn with a thickness of 0.25 mm and a width of 1.5 mm, and a warp yarn with a thickness of 0.04 mm and a width of 1.5 mm;

[0190] and step 3) adding 0.7% of the total amount of the finished glue as a foaming agent and continuing stirring for 10 minutes to obtain the finished glue, using a foaming machine to adjust the process parameters to foam the finished glue, and controlling the density after foaming to be 0.2 times the density before foaming, brushing the foamed glue on the bottom back of the semi-finished lawn, and curing in an oven to obtain a highly permeable and durable artificial turf.

[0191] Comparative Example 7

[0192] Comparative Example 7 is the same as Example 1, except that step (1) is drawing into a weft yarn with a thickness of 0.25 mm and a width of 1.5 mm, and a warp yarn with a thickness of 0.04 mm and a width of 1.5 mm;

[0193] and step 3) continuing to add 0.1% of the total amount of the finished glue as a foaming agent and continuing to stir for 10 minutes to obtain the finished glue, using a foaming machine to adjust the process parameters to foam the finished glue, and controlling the density after foaming to be 0.9 times the density before foaming, and applying the foamed glue to the bottom back of the semi-finished lawn, and curing in an oven to obtain an artificial lawn.

[0194] Comparative Example 8

[0195] Comparative Example 8 is the same as the embodiment, except that step (1) is drawing into a weft yarn with a thickness of 0.25 mm and a width of 1.5 mm, and a warp yarn with a thickness of 0.04 mm and a width of 1.5 mm;

[0196] and step 3) continuing to add 0.9% of the total amount of the finished glue as a foaming agent and continuing to stir for 10 minutes to obtain the finished glue, using a foaming machine to adjust the process parameters to foam the finished glue, and controlling the density after foaming to be 0.1 times the density before foaming, brushing the foamed glue on the bottom back of the semi-finished lawn, and curing in an oven to obtain an artificial lawn.

[0197] According to the above-mentioned water permeability performance test and durability performance test methods, relevant tests were carried out on Examples 24-27 and Comparative Examples 7-8, and the results are shown in Table 5.

[0198] Table 5

[0199]

[0200] It can be seen from Examples 24-27 in Table 5 that when the density ratio of the glue after foaming to the glue before foaming is between 0.8 and 0.2 and the amount of the foaming agent added is between 0.3% and 0.7%, the artificial turf prepared has good water permeability, and its bottom back coverage and mechanical properties after the simulation test are good, especially when the density ratio is between 0.7 and 0.3 and the amount of the foaming agent added is between 0.4 and 0.6%, the various properties after the simulation test are excellent.

[0201] It can be seen from Comparative Example 7 that when the density ratio of the glue after foaming to the glue before foaming is greater than 0.8 and the amount of the foaming agent added is less than 0.3%, the back adhesive layer is relatively dense and does not have enough holes, resulting in poor water permeability, and the mechanical properties of the lawn after the simulation test are poor. It can be seen from Comparative Example 8 that when the density ratio of the glue after foaming to the glue before foaming is less than 0.2 and the amount of the foaming agent added is greater than 0.7%, due to excessive foaming, the back adhesive layer has too many holes, the lawn has excellent water permeability, but the mechanical properties of the back adhesive layer are very poor.

[0202] Embodiment 28

[0203] Example 28 is the same as Example 7, except that the warp yarn thickness in step (1) is 0.03 mm.

[0204] Embodiment 29

[0205] Example 29 is the same as Example 7, except that the warp yarn thickness in step (1) is 0.06 mm.

[0206] According to the above-mentioned water permeability test and durability test methods, relevant tests were carried out on Examples 28-29, and the results are shown in Table 6.

[0207] Table 6

[0208] Test items Embodiment 28 Example 7 Embodiment 29 Warp thickness (mm) 0.03 0.04 0.06 Weft yarn thickness (mm) 0.25 0.25 0.25 Water seepage rate (mm / h) 30360 30560 31020 Initial pull-off force (N) 60.1 60.3 60.3 Pull-off force after long-term use (N) 58.4 58.2 58.9 Bottom back coverage after long-term use ☆☆☆ ☆☆☆ ☆☆☆

[0209] It can be seen from the examples in Table 6 that the prepared artificial turf has a good water seepage effect. When the artificial turf is subjected to a simulation test of actual use, since no holes are punched and the artificial turf has good water seepage performance, the bottom back coverage and mechanical properties after the simulation test are good.

[0210] Embodiment 30

[0211] Example 30 is the same as Example 7, except that the original glue in step 3) is styrene acrylic glue.

[0212] Embodiment 31

[0213] Example 31 is the same as Example 7, except that in step 3), the original glue is acrylic glue.

[0214] Embodiment 32

[0215] Example 32 is the same as Example 7, except that in step 3), the original glue is styrene-butadiene rubber and styrene-acrylic rubber, and the mass ratio is 1:1.

[0216] Embodiment 33

[0217] Example 33 is the same as Example 7, except that in step 3), the original glue is styrene-butadiene rubber and the filler is aluminum hydroxide.

[0218] Embodiment 34

[0219] Example 34 is the same as Example 7, except that in step 3), the original glue is styrene-butadiene glue and the filler is mica powder.

[0220] According to the above-mentioned water permeability test and durability test methods, relevant tests were carried out on Examples 30-34, and the results are shown in Table 7.

[0221] Table 7

[0222]

[0223] It can be seen from the examples in Table 7 that when the original glue and filler are changed, the artificial turf prepared has good water permeability, and its bottom back coverage and mechanical properties after the simulation test are good.

[0224] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0225] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to the above embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high permeability water-based fabric, characterized in that: The high permeability bottom cloth is formed by interlacing warp yarns and weft yarns, and the warp yarns and / or weft yarns contain yarn A and yarn B, the thickness of the yarn A is 0.08-0.5 mm; the thickness of the yarn B is 0.03-0.06 mm; The width of the warp yarn is 0.5-3mm; The width of the weft yarn is 0.5-4 mm; The weaving density of the warp yarn is 400-2400 yarns / m; The weaving density of the weft yarn is 300-2400 yarns / m; No drilling is required for subsequent processing.

2. The high permeability water-based fabric according to claim 1, characterized in that: The warp yarn is yarn B and the weft yarn is yarn A.

3. The high permeability water-based fabric according to claim 1, characterized in that: The warp yarn is yarn B, the weft yarn is yarn A and yarn B, and the weft yarn is woven alternately in an ABAB manner.

4. The high permeability water-based fabric according to claim 1, characterized in that: The weft yarn is yarn B and the warp yarn is yarn A.

5. The high permeability water-based fabric according to claim 1, characterized in that: The weft yarn is yarn B, the warp yarns are yarns A and B, and the warp yarns are alternately arranged and woven in an ABAB manner.

6. The high permeability water-repellent base fabric according to any one of claims 1 to 5, characterized in that: The color of the yarn is one or more of black, green, white, blue, purple, orange, yellow and brown.

7. The method for preparing a high permeability water-based fabric according to claim 6, characterized in that: The specific steps include: (1) uniformly mixing one or more of polyethylene resin, polypropylene resin, polyamide resin, and polyethylene terephthalate resin with a masterbatch and a processing aid, extruding the mixture with a screw extruder, cutting and drawing the mixture into yarns of desired width and thickness, and winding the yarns after shaping for standby use; (2) The warp and weft yarns are placed on a weaving machine according to the designed weaving density and arrangement to weave the desired high-permeability water-based fabric.

8. A highly water-permeable and durable artificial turf, characterized in that: It comprises a base fabric, grass silk and adhesive backing, wherein the base fabric comprises the high-permeability water base fabric as claimed in any one of claims 1 to 6; the grass silk is tufted on the base fabric, and the adhesive backing is coated on the back of the base fabric.

9. The highly water-permeable durable artificial turf according to claim 8, characterized in that: The base fabric is a layer of the highly permeable water base fabric; Or, the base fabric is a combination of a layer of the high permeability base fabric and a layer of mesh fabric; Or, the base fabric is a combination of the high water permeability base fabric and any non-woven fabric.

10. The highly water-permeable and durable artificial turf according to claim 8, characterized in that: The back glue is composed of original glue, filler and foaming agent; The raw glue is selected from one or more of styrene-butadiene glue, styrene-acrylic glue, ethylene-vinyl acetate glue, acrylic glue, epoxy glue and polyurethane glue; The mass ratio of the original glue to the filler is 8:2 to 2:8; The foaming agent is 0.3-0.7% of the total mass of the original glue and filler; In the back gluing process, the density of the glue after foaming is controlled to be 0.8 to 0.2 times the density of the glue before foaming.

11. The method for preparing a highly water-permeable and durable artificial turf according to claim 9, characterized in that: The following steps are involved: 1) Wire drawing process: polyethylene resin and / or polypropylene resin, masterbatch and additives are uniformly mixed into a mixture, and the mixture is extruded and drawn by a single screw extruder to form artificial turf fibers; 2) Tufting process: The twisted artificial grass yarn is tufted on the base fabric with a tufting machine at a specified row spacing and needle spacing to form an artificial turf semi-finished product; 3) Back glue process: Apply glue to the back of the semi-finished artificial turf product and solidify it in an oven to obtain the artificial turf.

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