CN110029553B - Manufacturing method of warp-knitted artificial skiing lawn - Google Patents
Manufacturing method of warp-knitted artificial skiing lawn Download PDFInfo
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- CN110029553B CN110029553B CN201910424808.5A CN201910424808A CN110029553B CN 110029553 B CN110029553 B CN 110029553B CN 201910424808 A CN201910424808 A CN 201910424808A CN 110029553 B CN110029553 B CN 110029553B
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- lawn
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B23/00—Flat warp knitting machines
- D04B23/02—Flat warp knitting machines with two sets of needles
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B23/00—Flat warp knitting machines
- D04B23/12—Flat warp knitting machines with provision for incorporating unlooped wefts extending from selvedge to selvedge
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
- E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
The invention relates to a warp-knitted artificial skiing lawn and a manufacturing method thereof, wherein the warp-knitted artificial skiing lawn comprises a warp-knitted base fabric and grass filaments arranged on the warp-knitted base fabric, and polyester hot melt filaments are arranged in looped yarns in the warp-knitted base fabric. The method for manufacturing the warp-knitted artificial skiing lawn mainly comprises the steps of determining the length of grass filaments, carrying out yarn laying, winding and unwinding the grass filaments, cutting the grass filaments, forming, heating, melting, cooling and rolling. The invention can further increase the toughness of the warp-knitted base fabric and the firmness of the connection of the warp-knitted base fabric and the grass yarns, prevent the grass yarns from falling off and increase the comfort and the safety of skiing because the polyester hot melt yarns are added in the warp-knitted base fabric.
Description
Technical Field
The invention belongs to the technical field of warp knitting of artificial lawns, and particularly relates to a manufacturing method of a warp-knitted artificial skiing lawn.
Background
The existing lawn is divided into a natural lawn and an artificial lawn, and the artificial lawn is more and more accepted by the public and is widely applied to occasions such as ski fields, football fields and the like. The existing artificial skiing lawn is manufactured by tufting and needs gum treatment. As the skiing lawn, the human body moves at a high speed on the skiing lawn and is supported by the skiing stick for a long time, the bottom of the gum is easy to crack, and the problem of falling of grass filaments is caused, so that the comfort and the safety of the movement are greatly reduced, and the cost of later maintenance is increased. In addition, the artificial skiing lawn has poor water permeability, cannot be completely recycled due to the gum treatment, and has poor environmental protection performance.
Disclosure of Invention
The invention aims to provide a warp-knitted artificial skiing lawn and a manufacturing method thereof, which are used for solving the problem that grass filaments of the artificial skiing lawn fall off.
The warp-knitted artificial skiing lawn of the invention is realized by the following steps:
a warp-knitted artificial skiing lawn comprises warp-knitted base fabric and grass filaments warp-knitted on the warp-knitted base fabric, wherein polyester hot melt filaments are arranged in looped yarns in the warp-knitted base fabric.
Furthermore, the grass filaments are made of PE or PP materials.
In addition, the invention also provides a manufacturing method of the warp-knitted artificial skiing lawn, which is realized by adopting a lawn knitting device and a heating mechanism based on a single-needle-bed warp knitting machine and comprises the following specific steps:
the method comprises the following steps: determining the distance between the filament positioning needle and the latch needle;
step two: twisting polyester yarns and polyester hot melt yarns, then passing through a looping guide bar for chaining, passing grass yarns through a grass yarn laying guide bar, and passing weft yarns through a weft insertion guide bar;
step three: the looping guide bar and the weft insertion guide bar are padded with yarns on the latch needles, and meanwhile, the grass silk padding guide bar winds grass silks on the latch needles and the grass silk positioning needles in sequence;
step four: the latch needle forms a loop and retreats, and simultaneously the grass filaments are cut off from the position of the grass filament positioning needle;
step five: repeating the second step, the third step and the fourth step, and forming the artificial skiing lawn by warp knitting;
step six: heating the formed artificial turf by a heating roller to melt the polyester hot melt yarns;
step seven: and cooling and winding the artificial skiing lawn after the polyester thermal fuse is melted.
Furthermore, the grass silk locating needle and the latch needle are arranged in a back-to-back mode, and the number of the grass silk locating needle and the latch needle is the same.
Furthermore, the grass silk locating pin is fixedly arranged on a sliding plate, and the sliding plate is arranged on a base in a sliding mode.
Furthermore, in the fourth step, a blade is arranged on one side of the grass filament positioning needle far away from the latch needle, and the blade can move towards or far away from the grass filament positioning needle.
Furthermore, the grass silk locating needles are arranged in pairs, gaps are formed between every two pairs of the grass silk locating needles, and the blades are opposite to the gaps between every two pairs of the grass silk locating needles.
Further, the decitex of the polyester thermal fuse is 100-300D.
Furthermore, guide rollers are respectively arranged on two sides of the heating roller, the two guide rollers and the heating roller are distributed in a U shape, and a pressing roller parallel to the heating roller is arranged on the heating roller.
Further, in the sixth step, the heating temperature of the heating roller is 110-.
After the technical scheme is adopted, the invention has the beneficial effects that:
(1) according to the invention, the grass filaments are directly woven in the warp-knitted base fabric in a warp knitting mode, gum treatment is not required, the firmness of the grass filaments can be increased, the warp-knitted base fabric is not easy to crack, the service life of the artificial skiing lawn is prolonged, the later maintenance cost is reduced, the recovery rate can reach 100%, and the environmental protection performance is improved;
(2) the polyester hot melt yarns are added into the warp-knitted base fabric, so that the toughness of the warp-knitted base fabric and the firmness of connection of the warp-knitted base fabric and the grass yarns can be further improved, the grass yarns are prevented from falling off, and the comfort and the safety of skiing are improved;
(3) the invention can weave the warp-knitted base fabric and simultaneously directly weave the grass silk on the warp-knitted base fabric, thereby reducing the manufacturing steps of the artificial skiing lawn and improving the production efficiency of the artificial skiing lawn.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a block diagram of a warp knitted artificial ski lawn of a preferred embodiment of the invention;
FIG. 2 is a block diagram of a lawn knitting apparatus based on a single needle bar warp knitting machine for the warp knitting method of the artificial ski lawn according to the preferred embodiment of the present invention;
FIG. 3 is a left side view of a grass forming mechanism of a lawn knitting device based on a single needle bar warp knitting machine for a warp knitting method of an artificial ski lawn according to a preferred embodiment of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
fig. 5 is a structural view of a heating mechanism used in the weaving method of the warp-knitted artificial ski lawn according to the preferred embodiment of the present invention;
in the figure: the artificial skiing lawn comprises a warp knitting base fabric 1, grass filaments 2, a lawn weaving device 3 based on a single needle bed warp knitting machine, grass filament positioning needles 301, blades 302, a grass filament yarn laying guide bar 303, latch needles 304, a looping guide bar 305, a weft insertion guide bar 306, a sliding plate 307, a base 308, a driving piece 309, a mounting frame 310, a motor 311, a telescopic piece 312, a heating roller 401, a guide roller 402, a pressing roller 403, a winding roller 404 and an artificial skiing lawn 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the warp-knitted artificial skiing lawn comprises a warp-knitted base fabric 1 and grass filaments 2 warp-knitted on the warp-knitted base fabric 1, wherein polyester thermal fuses are arranged in looped yarns in the warp-knitted base fabric 1.
The traditional artificial lawn adopts tufting to fix the grass filaments on the base fabric, the density of the grass filaments 2 can reach 1000-.
The grass filaments 2 are made of PE or PP materials.
Preferably, the straw filaments 2 made of PE materials are selected, so that the straw filaments are soft and have better wear resistance.
In addition, the decitex of the grass silk 2 is 3500-18000D, and the grass silk 2 with different decitex can be selected according to different occasions.
In addition, as shown in fig. 2 to 5, the present invention also provides a method for manufacturing a warp-knitted artificial skiing lawn, which is implemented by using a lawn knitting device 3 based on a single needle bed warp knitting machine and a heating mechanism 4, wherein the lawn knitting device 3 based on the single needle bed warp knitting machine is additionally provided with a grass filament forming mechanism on the basis of the single needle bed warp knitting machine, the grass filament forming mechanism specifically comprises a grass filament positioning needle 301 and a blade 302 for positioning the length of grass filaments, and one of the guide bar mechanisms of the single needle bed warp knitting machine is selected as a grass filament laying guide bar 303 for feeding the grass filaments 2.
The manufacturing method comprises the following specific steps:
the method comprises the following steps: determining the distance between the filament positioning needle 301 and the latch needle 304;
the length of the grass filaments 2 of the artificial lawn can be adjusted according to the distance between the grass filament positioning needle 301 and the latch needle 304, so that the artificial lawn is suitable for different occasions.
Latch needle 304 is a warp knitting needle on a single needle bed warp knitting machine.
Step two: twisting polyester yarns and polyester hot melt yarns, then passing through a looping guide bar 305 for chaining, passing grass yarns through a grass yarn laying guide bar 303, and passing weft yarns through a weft insertion guide bar 306;
step three: the looping guide bar 305 and the weft insertion guide bar 306 lay yarns on the latch needle 304, and meanwhile, the grass silk laying guide bar winds the grass silk 2 on the latch needle 304 and the grass silk positioning needle 301 in sequence;
in a looping process, the grass yarns 2 need to be wound on the latch needle 304 and the grass yarn positioning needle 301 by using the grass yarn laying guide bar 303, and the loop forming guide bar 305 and the weft insertion guide bar 306 need to lay yarns on the latch needle 304, so that the grass yarn laying guide bar 303, the looping guide bar 305 and the weft insertion guide bar 306 do not adopt the same driving mechanism, the driving mechanism can adopt a guide bar driving mechanism of a traditional warp knitting machine, and only the laying frequency of the two driving mechanisms needs to be adjusted.
Step four: the latch needle 304 forms a loop and retreats, and simultaneously, the grass silk 2 is cut off from the position of the grass silk positioning needle 301;
the grass silk 2 is cut off by a blade 302, and the ring-shaped grass silk 2 wound on the grass silk positioning needle 301 is cut off to form two single grass silks 2.
Step five: repeating the second, third and fourth steps, and warp-knitting and forming the artificial skiing lawn 5;
step six: heating the formed artificial skiing lawn 5 by a heating roller 401 to melt the polyester thermal fuse;
step seven: and cooling and winding the artificial skiing lawn 5 after the polyester thermal fuse is melted.
In order to realize the weaving of the grass filaments 2 directly on the warp-knitted base fabric 1, the grass filament positioning needles 301 are arranged opposite to the latch needles 304, and the number of the grass filament positioning needles and the latch needles is the same.
Because the length requirement of the grass filaments 2 is different in different use occasions, in order to increase the application range of the artificial turf and facilitate the adjustment of the length of the grass filaments 2, the grass filament positioning needle 301 is fixedly arranged on a sliding plate 307, and the sliding plate 307 is slidably arranged on a base 308.
The height of the grass silk 2 is adjusted by adjusting the distance between the grass silk positioning needle 301 and the latch needle 304.
Specifically, when the grass filament positioning needle 301 is moved toward the latch needle 304, the length of the grass filaments 2 on the artificial turf is reduced, and when the grass filament positioning needle 301 is moved away from the latch needle 304, the length of the grass filaments 2 on the artificial turf is increased.
Specifically, the sliding plate 307 is mounted on the base 308 through a guide rail or a sliding chute, and a driving member 309, such as an air cylinder, an oil cylinder or an electric push rod, is disposed at an end of the sliding plate 307 away from the latch needle 304, and is used for pushing the sliding plate 307 to move on the base plate 308, and is conveniently connected to a controller, so as to improve the intelligence and automation degree of the position adjustment of the filament positioning needle 301.
In the fourth step, the grass filament positioning needle 301 is provided with a blade 302 on the side far away from the latch needle 304, and the blade 302 can move towards or away from the grass filament positioning needle 301.
In particular, blade 302 comprises a plurality of blades, each slidably mounted on sled 307 by the same mounting bracket 310. The mounting frame 310 for mounting the blade 302 is slidably disposed on the sliding plate 307 through a sliding rail or a sliding chute, so as to move the blade 302 and achieve the effect of cutting the grass 2.
The grass filament positioning needles 301 are arranged in pairs, a gap is formed between each pair of the grass filament positioning needles 301, and the blade 302 is opposite to the gap between each pair of the grass filament positioning needles 301.
Preferably, the grass silk positioning needle 301 can be a slot needle, a hook needle or a latch needle, and the grass silk positioning needle 301 does not need operations such as looping and looping back, and only needs to perform a positioning action on the length of the grass silk 2.
Specifically, the groove needle that grass silk pilot pin 301 chose for use two liang sets up in pairs, and the gap between every pair of groove needle is less than the gap between the adjacent pair of groove needle promptly, when carrying out the 2 twines of grass silk, a pair of groove needle is walked around simultaneously to grass silk yarn guide bar 303 then with grass silk 2, then utilizes blade 302 to cut it and forms two grass silks 2, and the groove needle is fixed at this in-process, has increased the efficiency that artificial skiing lawn 5 was woven.
Each pair of the grass silk positioning needles 301 corresponds to one blade 302, and the blades 302 are in a rotating state in the process of cutting the grass silk 2. Therefore, the plurality of blades 302 are coaxially mounted on the same mounting frame 310, the central shafts of the blades 302 are sequentially in transmission connection, and the central shaft of the blade 302 at one end is connected with a motor 311 for driving the blade 302 to rotate.
In order to realize the direction that the blade 302 faces or is away from the grass silk positioning needle 301, in this embodiment, the sliding plate 307 is provided with an expansion part 312, such as an air cylinder, an oil cylinder or an electric push rod, and the expansion part 312 is arranged on the side of the mounting frame facing away from the grass silk positioning needle 301, when cutting grass silk, a piston rod of the expansion part 312, taking the air cylinder as an example, extends out, the mounting frame 310 and the blade 302 are moved towards the direction of the grass silk positioning needle 301, and are moved into a gap between the pair of grass silk positioning needles 301 opposite to the blade 302, so as to cut the grass silk 2, after cutting, the piston rod of the expansion part 312, taking the air cylinder as an example, retracts, so as to keep the blade 301 away from the grass silk positioning needle 301.
Alternatively, the movement of the blade 302 may be accomplished by a motor in cooperation with a cam.
In order to prevent the melting of the polyester thermal fuse from affecting the water permeability of the warp-knitted base fabric 1, the decitex of the polyester thermal fuse is 100-300D. The decitex of the artificial skiing lawn 5 is less than that of looped polyester yarns, so that the warp knitted base fabric 1 is prevented from being sealed after the polyester hot melt yarns are melted, and only a strip-shaped adhesive surface can be formed after the polyester hot melt yarns are melted, and the water permeability of the artificial skiing lawn 5 is ensured.
As shown in fig. 5, in order to melt the polyester thermal fuse and provide a heating effect, guide rollers 402 are respectively disposed at both sides of the heating roller 401, and the two guide rollers 402 are U-shaped with the heating roller 401, and a pressing roller 403 parallel to the heating roller 401 is disposed on the heating roller 401.
The heating mechanism comprises a guide roller 402, a heating roller 401, a pressing roller 403 and a winding roller 404, wherein the guide roller 402 and the heating roller 401 are arranged in a U shape, so that the contact time of the artificial skiing lawn 5 and the heating roller 401 can be prolonged, and the heating effect is improved.
Specifically, the side of the warp knitted base fabric 2 not provided with the grass filaments 2 is contacted with the heating roller 401 during heating, so that the contact area of the polyester thermal fuse and the heating roller 401 can be increased.
Preferably, after the melting and cooling, the artificial skiing lawn 5 is wound up by the winding roller 404, and the winding speed of the winding roller 404 is kept at 2-3 m/min, so that the melting and cooling of the polyester thermal fuse can be fully realized.
In order to ensure that the polyester thermal fuse can be completely melted, the temperature of the heating roller in the sixth step is 110-115 ℃.
On the basis of the manufacturing method, the embodiment specifically provides a preparation method of a warp-knitted artificial skiing lawn, wherein the yarns passing through the looping guide bar 308 adopt 1000D polyester yarns and 150D polyester hot-melt yarns, the yarns passing through the weft-insertion guide bar 306 adopt 1000D polyester yarns, after warp knitting is completed, the formed artificial skiing lawn 5 is sent to a heating roller 401 for heating and melting, the temperature of the heating roller 401 is 110 ℃, the polyester hot-melt yarns are melted to be viscous fluid with certain fluidity, and cooling, receiving and resolidifying are carried out, so that the yarns connected with the knitting chain and the grass yarns 2 are fixed together, and therefore, under the condition that water permeability is not affected, the firmness of connection of the warp-knitted base fabric 1 and the grass yarns 2 is increased, and the grass yarns 2 are prevented from falling off.
The warp-knitted artificial skiing lawn 5 prepared by the manufacturing method provided by the invention can improve the pull-out force of the grass filaments 2 and the crack resistance of the warp-knitted base fabric 1, and is used indoors, outdoors and in various climatic environments. In addition, the warp-knitted artificial skiing lawn 5 can be prepared on the basis of a single-needle-bar warp knitting machine, the width of the warp-knitted artificial skiing lawn 5 can be increased to 6-8 m, which is more than twice of the maximum width of the traditional artificial lawn, so that a series of problems caused by artificial lawn splicing are solved, the maintenance cost can be reduced, and the service life of the warp-knitted artificial skiing lawn 5 is prolonged.
In addition, the warp-knitted artificial skiing lawn 5 provided by the invention does not need gum, not only increases the water permeability, but also can be recycled by 100%, and improves the environmental protection performance.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (8)
1. The manufacturing method of the warp-knitted artificial skiing lawn is characterized by being realized by adopting a lawn knitting device (3) and a heating mechanism (4) based on a single-needle-bar warp knitting machine, and comprising the following specific steps of:
the method comprises the following steps: determining the distance between the filament positioning needle (301) and the latch needle (304);
step two: twisting polyester yarns and polyester hot melt yarns, then penetrating the twisted polyester yarns and the polyester hot melt yarns through a looping guide bar (305) for chain knitting, penetrating grass yarns (2) through a grass yarn laying guide bar (303), and penetrating weft yarns through a weft insertion guide bar (306);
step three: the looping guide bar (305) and the weft insertion guide bar (306) are padded on the latch needle (304), and meanwhile, the grass silk padding guide bar (303) winds the grass silk (2) on the latch needle (304) and the grass silk positioning needle (301) in sequence;
step four: the latch needle (304) forms a loop and retreats, and simultaneously the grass silk (2) is cut off from the position of the grass silk positioning needle (301);
step five: repeating the second, third and fourth steps, and warp-knitting and forming the artificial skiing lawn (5);
step six: heating the formed artificial skiing lawn (5) by a heating roller (401) to melt polyester thermal fuses;
step seven: and cooling and winding the artificial skiing lawn (5) after the polyester thermal fuse is melted.
2. Method for manufacturing a warp-knitted artificial ski lawn as claimed in claim 1, characterised in that the filament positioning needles (301) are arranged opposite the latch needles (304) and in equal number.
3. A method of manufacturing a warp knitted artificial ski lawn as claimed in claim 1, characterised in that the filament positioning pin (301) is fixedly mounted on a sled (307), the sled (307) being slidably mounted on a base (308).
4. A method of manufacturing a warp knitted artificial ski lawn as claimed in claim 1, characterised in that in step four the filament positioning needle (301) is provided with a blade (302) on the side remote from the latch needle (304), the blade (302) being movable towards or away from the filament positioning needle (301).
5. A method of manufacturing a warp knitted artificial ski lawn as claimed in claim 4, wherein the filament positioning pins (301) are arranged in pairs with a gap between each pair of filament positioning pins (301), the blade (302) being opposite the gap between each pair of filament positioning pins (301).
6. The method as claimed in claim 1, wherein the polyester thermal fuse has a decitex of 100 and 300D.
7. The method for manufacturing a warp-knitted artificial ski lawn as claimed in claim 1, wherein the heating roller (401) is provided with guide rollers (402) on both sides thereof, and the two guide rollers (402) are U-shaped with respect to the heating roller (401), and the heating roller (401) is provided with a pressing roller (403) parallel to the heating roller (401).
8. A method of manufacturing a warp knitted artificial ski lawn as claimed in claim 1, characterised in that in step six the heating temperature of the heating roller (401) is 110-115 ℃.
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| CN201910424808.5A CN110029553B (en) | 2019-05-21 | 2019-05-21 | Manufacturing method of warp-knitted artificial skiing lawn |
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| CN201910424808.5A CN110029553B (en) | 2019-05-21 | 2019-05-21 | Manufacturing method of warp-knitted artificial skiing lawn |
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| NL2019893B1 (en) * | 2017-11-13 | 2019-05-17 | De Vries Hugo | Artificial turf and method for manufacturing thereof |
| CN110965199A (en) * | 2020-01-02 | 2020-04-07 | 江南大学 | Weaving mechanism, cluster three-dimensional fabric and weaving method thereof |
| CN114703718A (en) * | 2022-04-27 | 2022-07-05 | 常州市森迈网业有限公司 | Artificial lawn and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6462502A (en) * | 1987-09-02 | 1989-03-09 | Otsuka Chemical Co Ltd | Artificial lawn and manufacture thereof |
| JP5256106B2 (en) * | 2009-04-16 | 2013-08-07 | ダイヤテックス株式会社 | Fire retardant artificial grass |
| JP5866717B2 (en) * | 2011-05-31 | 2016-02-17 | コーロン グロテック インコーポレイテッド | Artificial turf structure, manufacturing method thereof, and manufacturing apparatus |
| CN105568498B (en) * | 2015-12-31 | 2017-07-07 | 广州傲胜人造草股份有限公司 | A kind of chinampa and preparation method thereof |
| CN208701456U (en) * | 2018-08-27 | 2019-04-05 | 王岳祥 | A kind of 3D chinampa |
| CN109527682B (en) * | 2018-11-13 | 2021-03-23 | 中原工学院 | Warp knitting machine special for single-needle bed 3D wig and using method |
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