KR100634316B1 - Padding made up polyester for racing rice-sprouts and producing process thereof - Google Patents

Abstract

The present invention relates to a polyester spanbond nonwoven fabric which is used as a mat for mattress pad so that labor can be saved by separating the hair and the mother bed in the seeding work for transplanting the hair grown in the bed to the rice paddy, and a method of manufacturing the same. According to the present invention, the hair-grown polyester spanbonded nonwoven fabric has a polyester polymer having an intrinsic viscosity (IV) of 0.50 to 0.68 to adjust the discharge amount and the draw amount so that each filament fineness is 2 to 7de 'so that the web It is characterized in that it is obtained by heat-sealing the web with an uneven calender (Embossing roll) having a bonding rate of 5 to 45%.

The nonwoven fabric of the present invention configured as described above allows water and nutrients to pass well so that seedlings can grow, while the roots of the mock are dense enough to not grow through the nonwoven fabric so that the nonwoven fabric and the wool are easily separated from the mother plate. It is a useful invention for facilitating work.

Motherboard, Polyester

Description

Polyester spunbond nonwoven fabric for hair growth and its manufacturing method {Padding made up polyester for racing rice-sprouts and producing process etc}             

1a to 1e show various forms of a thermal adhesive embossing roll surface used in the manufacture of a spanbonded nonwoven fabric made of polyester according to the present invention;

Figure 2 is a photograph showing an application example of applying a spunbond nonwoven fabric prepared in accordance with the present invention to the hair stiffness plate,

Figure 3 is a photograph showing the hair root permeability and peelability of the hair, Figure 3a is a photograph when using a spunbond nonwoven fabric prepared according to the present invention, Figure 3b is a photograph when using a conventional fabric.

The present invention relates to a polyester spunbond nonwoven fabric for hair growth and a method for manufacturing the same, and more particularly, in the seedling operation for transplanting the seeded seedlings from the seedling into the paddy field, so that the separation between the seedlings and the seedlings can be made to reduce labor. The present invention relates to a polyester spanbond nonwoven fabric used as a mat for mating and to a method of manufacturing the same.

Hair growth technology has been developed since the past agricultural life. Recently, mats used for agricultural hair growth, such as bedding, are generally made of synthetic resin and molded to a certain standard. The shape of the mat is mainly rectangular and the bottom plate is drained. For the purpose, it becomes a mesh shape formed with a grid-shaped hole, and in order to prevent the loss of soil with the large hole of the base plate, the mat of a certain material is put on the base plate again, and the soil is spread and sprinkled with rice seeds and germinated. When they are grown and regularly matured, they are cultivating rice seedlings in ordinary rice fields.

This cultivation method for seeding seedlings has some problems in the transplanting process, one of which is not only difficult to separate from the seedlings, but also difficult to separate from the seedlings due to overgrowth of roots in agricultural hair growth, especially in the seedlings. There is a problem in that the normal growth is difficult because the roots are broken by force. In order to solve such a problem, a woven fabric (Film sprit yarn) was used as a foam material to inhibit the excessive growth of the root of the hair plate to easily separate the hair and the hair.

However, the conventional woven fabrics as described above do not exhibit the required performance such that the woven structure is not dense and the root of the hair grows excessively through the weaving between the fibers of the foam material so that the hair and the mother pad do not peel off. Still has not solved the problem.

The present inventors have to adjust the fineness of the filament to be constructed because the structure of the nonwoven fabric to provide a drainage while maintaining the structure of the nonwoven fabric to solve the above-described conventional problems, and in order to prevent the mock roots from penetrating the nonwoven fabric with heat fusion The present invention was completed by recognizing that the bonding rate and the bonding form to make a film into a film are very important.

The present invention has been made to solve the above-mentioned conventional problems, and the structure of the nonwoven fabric is made compact so that the root of the mock does not penetrate the nonwoven fabric, while the water permeability provides a good material without inhibiting the mock growth. It is to provide a nonwoven fabric material for the mother board that is easy to peel off the mother board and hair.

Another object of the present invention is to provide a method for producing a nonwoven fabric for a mother board having a fine tissue having a good permeability of water even though the root of the mock does not penetrate.

The hair growth polyester spanbond nonwoven fabric of the present invention for achieving the above object is composed of a polyester having a predetermined condition, respectively by adjusting the discharge amount and the draw amount of the polyester polymer having an intrinsic viscosity (IV) of 0.50 to 0.68 It is characterized in that the filament is injected to form a web so as to have a filament fineness of 2 to 7de ', and the web is obtained by heat fusion with an embossing roll having an bonding ratio of 5 to 45%.

According to another aspect of the present invention, there is provided a method of manufacturing a polyester spanbond nonwoven fabric for hair growth, in which a polyester polymer having an intrinsic viscosity of 0.50 to 0.68 is melted in an extruder and spun through a detention, at which time the filament fineness is 2 to 7de '. The discharge amount and the draw amount are adjusted so that the filaments are collected on the conveyor continuously moving, and the web is formed by adjusting the weight per unit area at the speed of the conveyor belt, and the unevenness of the formed web is 5 to 45%. It is characterized in that it is manufactured by heat-sealing with a type calendar.

The nonwoven fabric of the present invention prepared as described above maintains a certain strength to prevent hair roots from penetrating the nonwoven fabric so that hair can be easily separated from the mother plate.

In more detail, the method for producing a spanbonded nonwoven fabric of the present invention is described in detail. A polyester polymer having an intrinsic viscosity of 0.50 to 0.68 is melted in an extruder at 280 to 295 ° C., and has a diameter of 0.28 to 0.60 mm. After spinning, the spun polymer is cooled and solidified by 18 ° C. cooling air injected through the honeycomb chamber and stretches the filament through an ejector having an air pressure of 3.0 to 5.0 kg / cm 2. The filaments are impinged on the impingement plate at a constant angle and speed to disperse the filaments and evenly stacked on the moving conveyor belt using a suction device at the bottom to form a web.

The basis weight of the web is controlled by the number of holes in the discharge port, the discharge amount and the speed of the conveyor. The web formed as described above provides a constant temperature and pressure between an uneven calender having a bonding rate of 5 to 45% and a smooth surface roll in order to give a constant shape, physical properties and constant permeability. By heat fusion to prepare a nonwoven fabric of the present invention.

As described above, in order to be used as a base material for foaming, water and nutrients must be passed to allow the seedlings to grow, while the nonwoven fabric and the seedlings themselves must be separated from each other to facilitate the operation of the machine. Should not have characteristics. Therefore, the characteristics of the nonwoven fabric produced according to the present invention were evaluated using the following evaluation method.

[Assessment Methods]

The measurement and evaluation of the properties of each nonwoven fabric produced according to the following examples were analyzed by the method shown below.

(1) Tensile strength: Using the United's equipment of the United States, the maximum length of 10 specimens of 5cm in width and 7.5cm in length according to ASTM D1682-64 at the tensile speed of 300mm / min. Tensile strength was measured separately and the average value is shown in Table 1.

(2) Tensile elongation: The elongation at the time of maximum elongation measured by the method of said (1) was calculated | required, and it is shown in Table 1.

(3) Tear strength: measured by the Toung method of ASTM D2253, the value is shown in Table 1.

(4) Root permeability, root and peelability, growth state of hair growth: It was actually measured through the rearing of hair growth and evaluated as good or bad.

Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited to these Examples.

Example 1

Polyester chips with an intrinsic viscosity of 0.62 are dried and crystallized in a dryer and supplied to an extruder, and the chips continuously supplied are melted, mixed, and mixed in a high temperature extruder and are 0.32 mm in diameter. 285g per minute through the inlet hole to form filament, filament is cooled and solidified by cooling air supplied from the cooling chamber to prevent fusion between filaments, and filament through the ejector with air pressure of 3.5kg / ㎠ Is stretched to give properties as a filament. In order to form the web, the filament is impinged on the impingement plate at a constant angle and speed to disperse the filaments, and the web is formed by uniformly stacking the suction device on the continuously moving conveyor. At this time, the speed of the conveyor belt was 35 m per minute. The temperature of the calender was 240 ° C. at the top, 238 ° C. at the top, 65 kg / cm linear pressure, and the embossing shape of the top roll of the calender was 20%. Was used. The physical properties of the nonwoven fabric thus prepared, the permeability and peelability of the root of hair growth, and the growth state are shown in Table 1.

Example 2

A nonwoven fabric was produced in the same manner as in Example 1 except that the conveyor speed was 30 m / min and the calender conditions were the upper temperature of 245 ° C and the lower temperature of 243 ° C. The physical properties of the nonwoven fabric thus prepared, the permeability and peelability of the root of hair growth, and the growth state are shown in Table 1.

Example 3

A nonwoven fabric was produced in the same manner as in Example 1 except that the embossed shape of the upper roll of the calendar was 20% in the bonding ratio in the form as shown in FIG. 1B. The physical properties of the nonwoven fabric thus prepared, the permeability and peelability of the root of hair growth, and the growth state are shown in Table 1.

Example 4

A nonwoven fabric was produced in the same manner as in Example 1 except that the embossing shape of the upper roll of the calendar was 20% of a bonding ratio in the form as shown in FIG. 1C. The physical properties of the nonwoven fabric thus prepared, the permeability and peelability of the root of hair growth, and the growth state are shown in Table 1.

Example 5

A nonwoven fabric was produced in the same manner as in Example 1 except that the embossed shape of the upper roll of the calendar was 20% in the bonding ratio in the form as shown in FIG. 1D. The physical properties of the nonwoven fabric thus prepared, the permeability and peelability of the root of hair growth, and the growth state are shown in Table 1.

Example 6

A nonwoven fabric was produced in the same manner as in Example 1 except that the embossing shape of the upper roll of the calendar was 20% of a bonding ratio in the form as shown in FIG. 1E. The physical properties of the nonwoven fabric thus prepared, the permeability and peelability of the roots of hair growth, and the state of growth are shown in Table 1.

Comparative Example 1

The discharge amount was 250 g / min, the conveyor belt speed was 50.16 m / min, the calender conditions were the upper and lower temperatures were 235 ° C., and the linear pressure was 50 kg / cm. Thus, the physical properties of the nonwoven fabric, permeability and peeling properties of the root of the hair growth, the growth state is shown in Table 1.

Comparative Example 2

A nonwoven fabric was produced in the same manner as in Example 1 except that the embossed shape of the calender was used as in FIG. 1A and the bonding ratio was 4.5%. The physical properties of the nonwoven fabric thus prepared, the permeability and peelability of the root of hair growth, and the growth state are shown in Table 1.

Comparative Example 3

Conveyor belt speed was 16m / min, calender conditions were the upper and lower temperature was 250 ℃, linear pressure was 70kg / cm and the bonding rate was 4.5% except that the nonwoven fabric was prepared in the same manner as in Example 1. The physical properties of the nonwoven fabric thus prepared, the permeability and peelability of the root of hair growth, and the growth state are shown in Table 1.

Item Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Comparative Example 1 Comparative Example 2 Comparative Example 3 Nonwoven Weight (g / ㎡) 45.3 60.1 45.1 45.0 45.3 45.1 29.5 45.3 100.1 Thickness (mm) 0.15 0.19 0.16 0.15 0.16 0.15 0.11 0.15 0.30 Denia 3.2 3.5 3.5 3.4 3.3 3.2 3.1 3.2 3.7 Strength (Kg / 5cm) MD 18 23 17 17 19 18 12 16 26 CD 10 12  9  9 10  9 6 11 16 Elongation (%) MD 19 19 20 19 20 20 16 22 21 CD 20 23 22 24 22 23 20 21 23 Tear strength (Kg) MD 0.9 1.5 1.0 1.0 0.9 0.9 0.7 1.1 3.0 CD 0.7 1.2 0.8 0.7 0.7 0.8 0.6 0.9 3.3 Root permeability Opacity Opacity Opacity Opacity Opacity Opacity Penetration Penetration Opacity Root peelability Good Good Good Good Good Good Bad Bad Bad Growth Good Good Good Good Good Good Good Good Bad

As shown in Table 1, the nonwoven fabric of each embodiment prepared according to the configuration of the present invention was observed to have a good growth state by having a property of sufficiently passing water and nutrients to enable seedling growth when used for the hair growth foam material. As shown in 3a, the roots do not penetrate the nonwoven fabric, and thus, the mother plate and the seedling itself are easily separated from the nonwoven fabric.

The polyester spunbond nonwoven fabric for hair growth of the present invention having the above-described structure is constructed by densifying filaments, so that water and nutrients can be well passed so that seedlings can be grown, while the roots of the hairs do not grow through the nonwoven fabric. The dense, non-woven fabric of the mother board and the hair is easily separated to facilitate the operation of the machine at the time of the time of the machine can be shortened, and also to disclose the manufacturing method of the nonwoven fabric having the excellent effect as described above can be more easily manufactured It is a useful invention to provide a method.

Claims (3)

A polyester polymer having an intrinsic viscosity (IV) of 0.50 to 0.68 is adjusted to discharge amount and draw amount to form a web by injecting filament so that each filament fineness is 2 to 7de ', and the web has a bonding ratio of 5 to 45%. A polyester spunbond nonwoven fabric for hair growth characterized in that it is obtained by heat fusion with an embossing roll. The polyester spunbond for hair growth according to claim 1, wherein the nonwoven fabric has a basis weight of 30 to 70 g / m 2, and the embossed shape is diamond (◆), square (■), star (★), round, or rectangular. Non-woven. Conveyor phase that melts polyester polymer with intrinsic viscosity in the extruder and spins it through the mold, and adjusts discharge amount and draw amount to make filament fineness 2-7de ', and continuously moves the filament A polyester spunbond nonwoven fabric for hair growth, characterized in that the web is formed by adjusting the weight per unit area at the speed of the conveyor belt to form a web, and heat-sealing the formed web with an uneven calender having a bonding ratio of 5 to 45%. Manufacturing method.

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