阅读说明：本技术 一种无方向性人造草坪及制备方法 (Non-directional artificial lawn and preparation method thereof ) 是由 张妍 赵辉 吴晶 杨健 于 2021-07-29 设计创作，主要内容包括：本发明是一种无方向感的人造草坪,包括基布以及通过背胶固定在基布上的草丝,所述草丝包括具有自然垂落感的高直丝、起支撑作用的矮直丝以及模仿枯草的曲丝组成；本发明人造草坪的直丝呈现不一样的草高高度,高的直丝呈现自然界真草的垂落感,略矮的直丝根筋粗壮,起着强支撑作用,同时由于草丝层次分明,不受草高、行距以及克重的限制,无限接近自然界真草。(The invention relates to an artificial lawn without direction sense, which comprises a base cloth and grass filaments fixed on the base cloth through back glue, wherein the grass filaments comprise high straight filaments with natural dropping sense, short straight filaments with supporting function and curved filaments simulating hay; the artificial turf has the advantages that the straight filaments of the artificial turf have different grass height, the high straight filaments have the vertical falling feeling of natural real grass, the roots and the tendons of the slightly shorter straight filaments are thick and strong, the artificial turf plays a strong supporting role, and meanwhile, the artificial turf is infinitely close to the natural real grass due to the fact that the grass filaments are well-arranged and are not limited by grass height, row spacing and gram weight.)

1. The utility model provides a no direction sense's artificial turf, includes base cloth and fixes the grass silk on the base cloth through the gum, its characterized in that: the grass filaments comprise high straight filaments with natural drooping feeling, short straight filaments with supporting function and curved filaments simulating hay; meanwhile, the preparation method of the artificial lawn without the direction sense comprises the following steps:

(1) preparing high straight yarns with natural falling feeling: fully melting a material master batch, a color master batch, an aging auxiliary agent, a compatilizer and a lubricating auxiliary agent of the high-straight filament by using single-screw equipment, uniformly extruding the high-straight filament to obtain a blank filament, drafting the blank filament by using a hot water tank, shaping by using a shaping roller in the hot water tank, and cooling after shaping to obtain the high-straight filament with natural falling feeling;

(2) preparing short straight wires for supporting: fully melting a material master batch, a color master batch, an aging auxiliary agent, a compatilizer and a lubricating auxiliary agent by single-screw equipment, uniformly extruding a blank wire, drawing the blank wire by a hot water tank, and directly rolling for later use;

(3) the high straight wires with natural falling feeling and the short straight wires with the supporting function are folded in a doubling mode to form the straw filaments;

(4) adding curved filaments to carry out doubling together in the doubling process of the grass filaments in the step (3), and tufting the doubled grass filaments on a base cloth to obtain a lawn semi-finished product;

(5) coating a layer of glue on the back of the semi-finished lawn, heating at high temperature to stabilize the grass filaments, and heating the high straight filaments and the low straight filaments to deform to form the non-directional lawn with layering effect.

2. An artificial lawn having no sense of direction as claimed in claim 1, wherein: the falling angle range of the high straight filaments with the natural falling feeling is 120-170 degrees, the color is light green, the shapes are U-shaped, C-shaped, D-shaped, S-shaped or rectangular, and the grammes weight range (dtex) of a single grass filament is 0-1000.

3. An artificial lawn having no sense of direction as claimed in claim 2, wherein: the high straight silk material of the natural falling feeling is one or a mixture of more of PA, PE, PP, PLA and PBAT.

4. An artificial lawn having no sense of direction as claimed in claim 1, wherein: the height difference between the short straight filaments and the high straight filaments with natural falling feeling is within the range of 0-2cm, the short straight filaments are in the shapes of large V-shaped, W-shaped, striped large rectangle or rhombus, and the gram weight range (dtex) of a single grass filament is within 1000-2000.

5. An artificial lawn having no sense of direction as claimed in claim 1, wherein: the short straight filaments are made of one or a mixture of more of PE, POE, PP and PA.

6. An artificial turf without direction sense as claimed in claim 1, characterized in that: the color master is an inorganic color master, the aging auxiliary agent is a mixture of a hindered amine ultraviolet light stabilizer and an antioxidant, and the compatilizer is one of polyethylene grafted maleic anhydride, polypropylene grafted maleic anhydride and polyolefin elastomer grafted maleic anhydride.

7. An artificial lawn having no sense of direction as claimed in claim 1, wherein: and (4) after the high straight filament with the natural falling feeling is drafted by a hot water tank in the step (3), shaping treatment can be carried out by a heater with a temperature control device inside and a shaping hot roller connected with the outside.

8. An artificial lawn having no sense of direction as claimed in claim 1, wherein: the temperature of high-temperature heating in the step (5) is 45-125 ℃.

Technical Field

The invention particularly relates to the field of artificial lawns, and particularly relates to a non-directional artificial lawn and a preparation method thereof.

Background

The artificial lawn has the advantages of environmental protection, durability, simple maintenance, rapid drainage, less water consumption and the like, and is widely applied to the fields of competition fields, leisure, decoration and the like. With the development of artificial lawns, the requirements for the appearance and performance of lawns are higher and higher. Because the artificial turf is the production mode of the industrialized production line, compared with natural real grass, the prepared artificial turf is more tidy, the height and the standing type of the grass filaments tend to be consistent, and therefore the artificial turf is stiff and not vivid.

In the field of sports fields, the filling-free grass is popular in the market because rubber particles and sand do not need to be filled, but the filaments of the filling-free grass have certain reversibility at the initial stage of use and are not beneficial to ball rolling, so that how to provide the artificial lawn with high similarity to natural grass is a problem to be solved by the technical personnel in the field.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a non-directional artificial lawn and a preparation method thereof, the straight filaments of the artificial lawn have different grass heights, the high straight filaments have the vertical falling feeling of natural real grass, the roots and the tendons of the slightly short straight filaments are thick and strong, the artificial lawn plays a strong supporting role, and meanwhile, the grass filaments are clear in layer, are not limited by the grass heights, the row spacing and the gram weight and are infinitely close to the natural real grass.

The technical scheme for solving the technical problems is as follows: the artificial lawn without the direction sense comprises a base cloth and grass filaments fixed on the base cloth through gum, wherein the grass filaments comprise high straight filaments with natural dropping sense, short straight filaments with supporting function and curved filaments simulating hay; meanwhile, the preparation method of the artificial lawn without the direction sense comprises the following steps:

(1) preparing high straight yarns with natural falling feeling: fully melting a material master batch, a color master batch, an aging auxiliary agent, a compatilizer and a lubricating auxiliary agent of the high-straight filament by using single-screw equipment, uniformly extruding the high-straight filament to obtain a blank filament, drafting the blank filament by using a hot water tank, shaping by using a shaping roller in the hot water tank, and cooling after shaping to obtain the high-straight filament with natural falling feeling;

(2) preparing short straight wires for supporting: fully melting a material master batch, a color master batch, an aging auxiliary agent, a compatilizer and a lubricating auxiliary agent by single-screw equipment, uniformly extruding a blank wire, drawing the blank wire by a hot water tank, and directly rolling for later use;

(3) the high straight wires with natural falling feeling and the short straight wires with the supporting function are folded in a doubling mode to form the straw filaments;

(4) adding curved filaments to carry out doubling together in the doubling process of the grass filaments in the step (3), and tufting the doubled grass filaments on a base cloth to obtain a lawn semi-finished product;

(5) coating a layer of glue on the back of the semi-finished lawn, heating at high temperature to stabilize the grass filaments, and heating the high straight filaments and the low straight filaments to deform to form the non-directional lawn with layering effect.

The invention further defines the technical scheme that:

preferably, the natural falling feeling high straight filament has a falling angle range of 120-170 degrees, a bright green color, a U-shaped, C-shaped, D-shaped, S-shaped or rectangular shape, and a single filament grammes weight range (dtex) of 0-1000.

Preferably, the natural falling feeling high straight silk material is one or a mixture of PA, PE, PP, PLA and PBAT.

Preferably, the height difference between the short straight filaments and the high straight filaments with natural falling feeling is in the range of 0-2cm, the short straight filaments are in the shapes of large V-shaped, W-shaped, striped large rectangle or rhombus, and the grammes weight range (dtex) of a single grass filament is in the range of 1000-.

Preferably, the short straight filaments are made of one or a mixture of several of PE, POE, PP and PA.

Preferably, the color master is an inorganic color master, the aging auxiliary agent is a mixture of a hindered amine ultraviolet light stabilizer and an antioxidant, and the compatilizer is one of polyethylene grafted maleic anhydride, polypropylene grafted maleic anhydride and polyolefin elastomer grafted maleic anhydride.

Preferably, in the step (3), after the high straight filament with natural falling feeling is drafted by a hot water tank, the blank filament can be subjected to shaping treatment by a heater with a temperature control device inside and a shaping hot roller connected outside.

Preferably, the temperature for high-temperature heating in the step (5) is 45-125 ℃.

The invention has the beneficial effects that: according to the invention, through different formulas and differentiated straight filament shaping processes, the obtained directionless artificial lawn straight filaments with different grass filament heights are different in grass height, the high straight filaments are vertical to natural real grass, the slightly short straight filaments are thick in root and tendon, and play a strong supporting role, and meanwhile, the grass filaments are clear in level, are not limited by grass height, row spacing and gram weight, and are infinitely close to natural real grass; the directionless artificial lawn breaks through a stiff lawn product produced in a production line production mode in the field of landscape leisure grass, is closer to real grass in the nature and has better ornamental value; in the field of sports grass, the directionless artificial turf is greatly improved in ball rolling and sports body feeling of athletes.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a hot water tank according to embodiment 1 of the present invention;

FIG. 3 is a schematic view of the structure of a sizing hot roll in example 2 of the present invention.

Detailed Description

Example 1

This embodiment provides an artificial turf without a sense of direction, as shown in fig. 1: comprises a base cloth 1 and grass filaments fixed on the base cloth through gum, wherein the grass filaments comprise high straight filaments 4 with natural drooping feeling, short straight filaments 3 with supporting function and curved filaments 2 imitating hay; the preparation method of the artificial lawn without the sense of direction comprises the following steps of:

(1) preparing high straight yarns with natural falling feeling: fully melting a material master batch of the high straight yarn, a color master, an aging assistant, a compatilizer and a lubricating assistant at an average temperature of 260 ℃ by using single-screw equipment, uniformly extruding a blank yarn, drafting the blank yarn by using a hot water tank, shaping by using a shaping roller 6 in the hot water tank shown in figure 2, and cooling after shaping to obtain the high straight yarn with natural falling feeling, wherein the color master is an inorganic color master, the aging assistant is a mixture of a hindered amine ultraviolet light stabilizer and an antioxidant, and the compatilizer is polyethylene grafted maleic anhydride;

(2) preparing short straight wires for supporting: fully melting a material master batch, a color master batch, an aging auxiliary agent, a compatilizer and a lubricating auxiliary agent at an average temperature of 230 ℃ by single-screw equipment, uniformly extruding a blank wire, drawing the blank wire by a hot water tank, and directly rolling for later use, wherein the color master batch is an inorganic color master batch, the aging auxiliary agent is a mixture of a hindered amine ultraviolet light stabilizer and an antioxidant, and the compatilizer is polyethylene grafted maleic anhydride;

(3) the high straight wires with natural falling feeling and the short straight wires with the supporting function are folded in a doubling mode to form the straw filaments;

(4) adding curved filaments to carry out doubling together in the doubling process of the grass filaments in the step (3), and tufting the doubled grass filaments on a base cloth to obtain a lawn semi-finished product;

(5) and coating a layer of glue on the back of the semi-finished lawn, heating at a high temperature of 105 ℃, stabilizing the grass filaments by the glue, and heating the high straight filaments and the low straight filaments to deform to form the non-directional lawn with the layering effect.

Example 2

This embodiment provides an artificial turf without a sense of direction, as shown in fig. 1: the grass silk comprises high straight silk with natural falling feeling, short straight silk with supporting function and curved silk imitating hay; the natural falling feeling artificial turf comprises a natural falling feeling high straight filament, a large V-shaped high straight filament, a natural falling feeling artificial turf and a natural falling feeling artificial turf, wherein the falling angle range of the natural falling feeling high straight filament is 160 degrees, the color of the natural falling feeling high straight filament is light green, the shape of the natural falling feeling high straight filament is rectangular, the grammage (dtex) of a single grass filament is 600, the material of the natural falling feeling high straight filament is PE, the height difference between the short straight filament and the natural falling feeling high straight filament is 0.5cm, the shape of the natural falling feeling high straight filament is large V-shaped, the grammage (dtex) of the single grass filament is 1500, the material of the natural falling feeling high straight filament is one or a mixture of more PA, and the preparation method of the artificial turf comprises the following steps:

(1) preparing high straight yarns with natural falling feeling: fully melting a material master batch, a color master, an aging auxiliary agent, a compatilizer and a lubricating auxiliary agent of the high straight filament at an average temperature of 230 ℃ by using single-screw equipment, uniformly extruding the blank filament, drafting the blank filament by using a hot water tank, carrying out shaping treatment by using a shaping hot roller 8 of a heater 7 with a temperature control device in the figure 3, connecting a speed-adjustable motor outside the shaping hot roller, and cooling after shaping by using the shaping hot roller to obtain the high straight filament with natural falling feeling, wherein the color master is an inorganic color master, the aging auxiliary agent is a mixture of a hindered amine ultraviolet light stabilizer and an antioxidant, and the compatilizer is polyolefin elastomer grafted maleic anhydride;

(2) preparing short straight wires for supporting: fully melting a material master batch, a color master batch, an aging auxiliary agent, a compatilizer and a lubricating auxiliary agent at an average temperature of 230 ℃ by single-screw equipment, uniformly extruding a blank filament, drawing the blank filament by a hot water tank, and directly rolling for later use, wherein the color master batch is an inorganic color master batch, the aging auxiliary agent is a mixture of a hindered amine ultraviolet light stabilizer and an antioxidant, and the compatilizer is polyolefin elastomer grafted maleic anhydride;

(3) the high straight wires with natural falling feeling and the short straight wires with the supporting function are folded in a doubling mode to form the straw filaments;

(4) adding curved filaments to carry out doubling together in the doubling process of the grass filaments in the step (3), and tufting the doubled grass filaments on a base cloth to obtain a lawn semi-finished product;

(5) and coating a layer of glue on the back of the semi-finished lawn, heating at the high temperature of 115 ℃, stabilizing the grass filaments by the glue, and heating the high straight filaments and the low straight filaments to deform to form the non-directional lawn with the layering effect.

In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.