CN114319012B - Artificial lawn and preparation method and application thereof - Google Patents
Artificial lawn and preparation method and application thereof Download PDFInfo
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- CN114319012B CN114319012B CN202111556167.2A CN202111556167A CN114319012B CN 114319012 B CN114319012 B CN 114319012B CN 202111556167 A CN202111556167 A CN 202111556167A CN 114319012 B CN114319012 B CN 114319012B
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Abstract
The application belongs to the technical field of artificial lawns, and particularly relates to an artificial lawn, a preparation method and application thereof. The application provides a preparation method of an artificial turf, which comprises the steps of heating the root parts of artificial grass fibers at the back of the artificial turf to a viscous state, then carrying out casting, so that the root parts of the artificial grass fibers which are originally separated from each other and independent form a continuous flat state are attached to the back of the artificial grass fibers, namely the back of a grass base, and cooling to fix the artificial grass fibers on the back of the grass base.
Description
Technical Field
The application belongs to the technical field of artificial lawns, and particularly relates to an artificial lawn, a preparation method and application thereof.
Background
The artificial lawn is a simulated lawn manufactured by taking plastic chemical fiber products as raw materials and adopting a manual method, has the advantages of simple maintenance, rapid drainage and excellent field flatness, and is widely used in sports places such as indoor and outdoor hockey, baseball, football, tennis, golf and the like or used as ground pavement to beautify indoor environments and the like.
The artificial turf comprises three parts of artificial grass fibers, a grass base and a back gum, wherein the artificial grass fibers and the grass base are mainly made of polyethylene and polypropylene respectively, the back gum is usually an adhesive system such as carboxyl styrene-butadiene rubber, the artificial grass fibers, the grass base and the back gum are connected in a mode of fixing the artificial grass fibers on the grass base according to the bonding action of the back gum, however, as the artificial turf is used outdoors at high frequency and high strength in a sport field, the bonding action of the back gum is reduced, so that the artificial grass fibers fall off from the grass base, meanwhile, the bonding action of the back gum is reduced due to outdoor rainwater soaking, the artificial grass fibers fall off from the grass base, and the service life of the artificial turf is shortened.
Disclosure of Invention
In view of the above, the application provides an artificial turf, a preparation method and application thereof, and the technical problem of shortened service life of the artificial turf caused by falling of the existing artificial turf fibers from a grass base can be solved by improving the connection mode of the artificial turf fibers and the grass base.
The first aspect of the present application provides a method for preparing an artificial lawn, comprising the steps of:
step 1, heating artificial grass fibers at the back of the tufted artificial lawn to a viscous state to obtain a viscous state artificial lawn;
step 2, calendering the artificial grass fiber on the back of the viscous flow state artificial turf to obtain a flat artificial turf;
and 3, cooling the flat artificial lawn to obtain the artificial lawn.
Preferably, in step 1, the heating the artificial grass fiber on the back of the tufted artificial turf to a viscous state specifically includes:
and heating PE-based artificial grass fibers on the back of the non-woven fabrics in the tufted artificial turf to a viscous state.
The application adopts the non-woven fabric as the grass base part of the artificial turf, and the non-woven fabric is produced by using polyester fiber, polyester fiber and other raw materials, so that the non-woven fabric has the heat insulation property, the Vicat softening point is more than 200 ℃, and the Vicat softening point of the PE-based artificial grass fiber is about 120 ℃, so that the non-woven fabric serving as the grass base part of the artificial turf cannot be deformed when the PE-based artificial grass fiber is heated to a viscous state, and meanwhile, the heat insulation property of the non-woven fabric also avoids the melting deformation of the artificial grass fiber on the front surface of the non-woven fabric in the artificial turf, thereby improving the molding effect of the artificial turf and improving the appearance and quality of the artificial turf.
Preferably, in step 1, heating the artificial grass fiber on the back of the tufted artificial turf to a viscous state specifically includes:
and heating the artificial grass fiber on the back of the tufted artificial turf to a viscous state by heat conduction or heat radiation.
The tufted artificial turf is conveyed to an oven baking room, and the artificial grass fiber on the back of the artificial turf is heated and melted into a viscous state through a heat conduction or heat radiation heating mode.
Preferably, the artificial grass fibre at the back of the artificial grass after tufting is heated to a viscous state by hot air.
Preferably, the artificial grass fibre on the back of the artificial grass after tufting is heated to a viscous state by infrared radiation.
In the case of the infrared radiation heating, the radiation source converts the internal energy into the radiation energy and performs heat transfer, as compared with the heat conduction heating method of the hot air heating. The artificial grass fiber heating device has the advantages that the heating efficiency is high, the construction cost is low, the environment is protected, the heated artificial grass fiber directly absorbs radiation to generate heat, the air does not need to be heated like hot air heating, then the heat is conducted to the artificial grass fiber by the air, on one hand, the phenomenon that the heat is easily conducted to the artificial grass fiber on the front side of the artificial grass along with the hot air in the heat conduction process, the forming effect, the appearance and the quality of the artificial grass are reduced, on the other hand, the external heating is not conducted in an external-to-internal mode, the single artificial grass fiber is uniformly heated, the external part is melted, the internal part is not melted, the heating effect is good, the connecting effect between the single artificial grass fiber is improved, meanwhile, the fact that the heating temperature of part of the artificial grass fiber is too high is avoided, and the connecting effect between the artificial grass fibers is poor due to the fact that the heating temperature of the part of the artificial grass fiber is too low is avoided.
Preferably, the mid-infrared wavelength of the infrared thermal radiation heating is 8000-14000nm.
The PE resin absorbs the infrared energy most strongly at a wavelength within this range, and has a good heating effect.
Preferably, in step 1, the heating temperature is 100 to 180 ℃.
Preferably, in step 2, calendering the artificial grass fiber on the back of the viscous flow-state artificial turf specifically includes: and calendaring the artificial grass fiber roll shaft at the back of the viscous-state artificial lawn.
Preferably, in step 2, calendering the artificial grass fiber roller on the back of the viscous artificial lawn specifically includes: and conveying the artificial grass fibers at the back of the viscous-flow-state artificial turf to a calender through a transmission system for roll shaft calendering.
Preferably, the transmission system is a belt transmission system.
Preferably, in step 3, the cooling is at room temperature.
The room temperature is 20 to 25 ℃.
The second aspect of the application provides an artificial lawn, which is prepared by the preparation method.
According to a third aspect of the present application, there is provided an artificial turf prepared by the method of the first aspect or an application of the artificial turf in sports fields.
Preferably, the sports field is an outdoor sports field.
The artificial turf provided by the application improves the connection mode of the artificial grass fiber and the grass base, thereby avoiding the reduction of the bonding effect of the adhesive system such as carboxyl styrene-butadiene rubber and the like caused by high-strength sports or rainwater soaking, and being applicable to high-strength sports places or outdoor sports places where rainwater soaking is easy to occur outdoors.
In summary, the application provides an artificial lawn, and a preparation method and application thereof; the preparation method of the artificial lawn comprises the following steps: firstly, heating artificial grass fibers at the back of the tufted artificial turf to a viscous state to obtain a viscous-state artificial turf; calendering the artificial grass fiber on the back of the viscous flow artificial lawn to obtain a flat artificial lawn; finally, cooling the flat artificial lawn to obtain an artificial lawn; the artificial grass fiber is planted on the grass base, the head of the artificial grass fiber is orderly and densely formed on the front surface of the grass base, the root of the artificial grass fiber is heated to be in a viscous state and then is rolled, the root of the artificial grass fiber which is originally separated from each other is formed to be in a continuous flat state and attached to the back of the artificial grass fiber, namely, the back of the grass base, and the artificial grass fiber is fixed on the back of the grass base after cooling.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a physical diagram of an artificial turf according to the prior art;
fig. 2 is a physical diagram of an artificial turf according to embodiment 1 of the present application;
fig. 3 is a schematic view of the artificial turf according to example 1 of the present application.
Detailed Description
The application provides an artificial lawn, a preparation method and application thereof, which can solve the technical problem of shortened service life of the artificial lawn caused by falling of the existing artificial grass fiber from a grass base by improving the connection mode of the artificial grass fiber and the grass base.
The following description of the technical solutions in the embodiments of the present application will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Among them, the reagents and raw materials used in the following examples are all commercially available or homemade.
Example 1
The embodiment 1 of the application provides a preparation method of a first artificial turf, which comprises the following process steps:
step 1, extrusion wire drawing
Mixing PE color master batch and PE resin according to a mass ratio of 1:60 are mixed to a proper color and processed into artificial grass fibers by a wire drawing machine.
Step 2, doubling tufting
Hanging the artificial grass fiber prepared in the step 1 at a fixed position, driving the artificial grass fiber into a corresponding pipeline through an air gun, penetrating the artificial grass fiber into a corresponding pinhole, and forming the artificial grass fiber on a non-woven fabric to obtain an artificial lawn with neat and dense artificial grass fiber heads on the front surface and roots of the artificial grass fiber tufted on the back surface of a grass base.
And 3, conveying the tufted artificial turf prepared in the step 2 to a baking oven baking room through a belt conveying device, heating the baking oven baking room by a hot air heater, and controlling the heating temperature to be 150 ℃, so that PE-based artificial grass fibers on the back of the non-woven fabric in the artificial turf are heated to a viscous state, and thus the viscous-state artificial turf is obtained.
And 4, continuously conveying by a belt conveying device, so that the viscous-state artificial turf prepared in the step 3 is conveyed to a calender to be rolled by a roll shaft, and after the roll shaft is self-weight-rolled, the independent grass cluster structure is attached to the turf base in a continuous and flat state, so that the flat-state artificial turf is obtained.
And 5, cooling the flat artificial turf prepared in the step 4 at room temperature to obtain the artificial turf.
Example 2
The embodiment 2 of the application provides a preparation method of a second artificial turf, which comprises the following process steps:
step 1, extrusion wire drawing
Mixing PE color master batch and PE resin according to a mass ratio of 1:50 are mixed to a suitable colour and processed into artificial grass fibres by a wire drawing machine.
Step 2, doubling tufting
Hanging the artificial grass fiber prepared in the step 1 at a fixed position, driving the artificial grass fiber into a corresponding pipeline through an air gun, penetrating the artificial grass fiber into a corresponding pinhole, and forming the artificial grass fiber on a non-woven fabric to obtain an artificial lawn with neat and dense artificial grass fiber heads on the front surface and roots of the artificial grass fiber tufted on the back surface of a grass base.
And 3, conveying the tufted artificial turf prepared in the step 2 to a baking oven baking room through a belt conveying device, heating the baking oven baking room by a heat source infrared heat radiator, and controlling the heating temperature to be 120 ℃, so that PE-based artificial grass fibers on the back of non-woven fabrics in the artificial turf are heated to a viscous state, and the viscous-state artificial turf is obtained.
And 4, continuously conveying by a belt conveying device, so that the viscous-state artificial turf prepared in the step 3 is conveyed to a calender to be rolled by a roll shaft, and after the roll shaft is self-weight-rolled, the independent grass cluster structure is attached to the turf base in a continuous and flat state, so that the flat-state artificial turf is obtained.
And 5, cooling the flat artificial turf prepared in the step 4 at room temperature to obtain the artificial turf.
On the one hand, compared with the hot air heating mode provided in the embodiment 1, the hot air heating mode needs to heat the air around the turf firstly, the infrared radiation does not need a heating medium, and the heat is directly transmitted to the turf back in a radiation mode, so that the roots of the grass yarns are heated and melted, the energy utilization efficiency is greatly improved, and meanwhile, the time for rising to the required temperature is far less than the time for hot air circulation.
On the other hand, compared with far infrared radiation heating, the hot air circulation is better unstable, and is extremely easy to be influenced by wind speed, boiler temperature and outdoor temperature, so that hot air is easy to permeate to one side of the surface of the turf in the hot air circulation heating process, grass yarns are heated and contracted to influence the appearance and quality, two far infrared radiation heating works without actually contacting with heated objects, the artificial turf is not easy to be damaged, heat cannot permeate to one side of the surface of the turf, and the appearance and quality of the artificial turf are improved.
Meanwhile, the infrared furnace heater is relatively simple, the furnace body structure is light, and a heavy mechanism of a common hot-blast stove is not needed, so that the construction cost and the installation cost can be greatly reduced, and unlike a gas hot-blast stove or a coal hot-blast stove, the infrared radiation heater using electric power does not generate a byproduct after combustion, so that a workpiece is not polluted. The low wind speed also reduces the chance of contamination of the artificial turf by dust in the air.
In summary, the artificial turf provided by the application does not contain any gum system, the artificial grass filaments are fixed in a secondary processing mode of the grass filaments, so that the extraction force of the product depends on the structural strength of the PE grass filaments, the fixing effect is far greater than that of the styrene-butadiene rubber system with the adhesive property of glue, moreover, the artificial turf used in outdoor sport places cannot avoid the condition of long-time soaking or high-strength movement, the adhesive strength of the carboxyl styrene-butadiene rubber system is obviously reduced after long-time use, the extraction force is reduced by 40% -50%, the service life of the artificial turf is shortened, and the artificial turf provided by the application is fixed by depending on the structural strength of the PE grass filaments, so that the service life of the artificial turf is prolonged;
moreover, the carboxylic butylbenzene colloid is used as a solvent type glue system, the organic volatile residue after the processing is focused on, and the environmental protection performance is greatly controversial; the product of the patent is not additionally added with any glue system, the grass yarn part and the base fabric part are both thermoplastic polymer materials, and the product does not contain any volatile residues of heavy metals and organic matters, thereby having great advantages in the aspect of environmental protection.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.
Claims (6)
1. The preparation method of the artificial lawn is characterized by comprising the following steps of:
step 1, heating artificial grass fibers at the back of the tufted artificial lawn to a viscous state to obtain a viscous state artificial lawn;
step 2, calendering the artificial grass fiber on the back of the viscous flow state artificial turf to obtain a flat artificial turf;
step 3, cooling the flat artificial lawn to obtain an artificial lawn;
in the step 1, heating the artificial grass fiber on the back of the tufted artificial lawn to a viscous state specifically comprises the following steps:
heating PE-based artificial grass fibers at the back of the tufted artificial turf to a viscous state by heat radiation;
the heat radiation heating is infrared heat radiation heating;
the infrared wavelength in the infrared heat radiation heating is 8000-14000nm.
2. The method of claim 1, wherein in the step 1, the heating temperature is 100-180 ℃.
3. The method for producing an artificial turf according to claim 1, characterized in that in step 2, the calendering of the artificial grass fiber on the back of the viscous-flow-state artificial turf specifically comprises:
and conveying the artificial grass fibers at the back of the viscous-flow-state artificial turf to a calender through a transmission system for roll shaft calendering.
4. An artificial lawn, characterized in that it is prepared by the preparation method according to any one of claims 1-3.
5. Use of an artificial lawn prepared by the preparation method of any one of claims 1-3 in sport areas.
6. Use of the artificial turf prepared by the preparation method of any one of claims 1 to 3 in outdoor sport areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111556167.2A CN114319012B (en) | 2021-12-17 | 2021-12-17 | Artificial lawn and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111556167.2A CN114319012B (en) | 2021-12-17 | 2021-12-17 | Artificial lawn and preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN114319012A CN114319012A (en) | 2022-04-12 |
| CN114319012B true CN114319012B (en) | 2023-10-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104727202B (en) * | 2015-02-09 | 2017-05-03 | 江苏共创人造草坪有限公司 | Recoverable artificial lawn and preparation method thereof |
| CN107009631A (en) * | 2017-05-15 | 2017-08-04 | 江苏共创人造草坪有限公司 | A kind of recyclable chinampa of entirety and preparation method thereof |
| CN112112029A (en) * | 2020-08-27 | 2020-12-22 | 广州傲胜人造草股份有限公司 | Artificial lawn knitted by mesh base cloth and manufacturing method thereof |
| CN213836155U (en) * | 2020-10-20 | 2021-07-30 | 江苏共创人造草坪股份有限公司 | Integrally-recyclable artificial lawn |
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