KR20170125627A - Uniform-Sized ball type fibrous Assemblies - Google Patents

Abstract

The present invention relates to a fiber assembly having a ball-like shape with uniform diameter. To this end, the fiber assembly gets to have the ball-like shape by separating at least one or two single fibers selected among a polyamide-based single fiber, a polyester-based single fiber, and a polypropylene-based single fiber via opening and blending, and then putting the same together in a shape of balls. A standard deviation of the average diameter of the ball-shaped fiber assembly is 1-1.5, and kurtosis is at least 3.

Description

[0002] Uniform-Sized ball type fibrous assemblies have a uniform ball-

The present invention relates to a fiber aggregate having a ball shape having a uniform diameter, and more particularly, to a fiber aggregate having a uniform ball shape in which the uniformity of the diameter of the fiber aggregate having the ball shape is increased to improve the warmth.

As outdoor clothing becomes popular, when outdoor winds are blowing, everyone can take out the goose down or duck down jumper to maintain the body temperature. Outdoor products are already in the deep part of our life. , Consumers have begun to demand outdoor products that are more suitable for everyday life than high-priced, warm-keeping high-end products for extreme environments. As a result of these trends, winter outdoor products are being developed for outdoor products that are thin, lightweight, lightweight, windproof, breathable and highly functional outdoor products, and their popularity is increasing day by day.

Therefore, outdoor products that have increased thermal insulation are manufactured with passive methods to prevent the heat released from the human body from being lost to the outside, and active methods to utilize heat applied from the outside. The former method is to heat the heat generated from the body by the air layer of the fabric, to use the infrared reflective material which does not radiate radiant heat from the body to the outside of the clothes, And the like. In the latter method, a method of introducing an electric heating material, a chemical reaction heat insulating material, and a solar thermal insulating material into a coating has been proposed.

However, most of the products that are currently being put on the market are heat insulation by the air layer, which is the reason for increasing the thickness of the fabric constituting the coating, which causes the activity to be lowered. (Feather, feather) is a result of agglomeration and exudation during washing, heat insulation is degraded and it is not good for cosmetics.

In addition, goose down or duck down is mainly used as the above-mentioned female hair, and mainly fluff and feather parts are mixed and used. The fluff is mainly used to enhance the warmth and tactility of the warm-weather product with the hair obtained from the thorax of the aquarium, the lower part of the neck, the lower part of the neck, and the lower part of the wing. Feathers improve the volume and fill power to improve the restorative power. However, it is impossible to supply products at low price because it is difficult to produce large quantities of products because the virus spreads due to the frequent occurrence of avian influenza and the limited supply of avian influenza even with slight carelessness.

Accordingly, in order to satisfy consumer needs of various classes, it is required to develop a general-purpose outdoor product having superior functionality and cost competitiveness, and domestic materials for it.

Korean Patent No. 10-1183949 discloses a padding for warming which is formed by laminating synthetic fibers and mammalian hairs together. The padding made a multi-layered insulating material made by laminating a synthetic fiber layer, a layer of a mixture of a mammalian hair and a synthetic fiber, and made a formally stable insulating material having a proper thickness without aggregation or fiber exudation. However, The process is troublesome because a separate facility for supplying mammal hair is added, and the merit of the mammal hair is mixed with the synthetic fiber to reduce the merit of the moth, and the price competitiveness is lower than that of a general synthetic thermal insulator.

In addition, the fibrous aggregate for filler using general synthetic fibers is manufactured by forming a nonwoven web in which monofilaments are laminated to a certain thickness as in Korean Patent No. 0405319.

However, when the nonwoven fabric is manufactured in the form of a nonwoven web as described above, the size and shape of the nonwoven fabric web are deteriorated and the ease of use is reduced.

In order to solve the problems of the related art as described above, a fiber aggregate having a ball shape that can be used in the same manner as down but not a certain shape has been developed and its usage is gradually increasing. As described above, the fiber aggregate having a ball shape is produced by bundling staple fibers in a ball shape, and is not a fixed shape like a nonwoven web, .

However, the conventional fiber aggregate having a ball shape has a disadvantage in that the size of each fiber aggregate is not uniform, and the advantage of having a ball shape in terms of tolerance and recoverability is damaged.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a fiber aggregate having a uniform ball shape and having a uniform ball- And to provide the above-mentioned objects.

It is also an object of the present invention to provide a fiber aggregate having a spherical shape having a uniform light emitting function by containing a light emitting substance in a short fiber.

In the present invention, one or two or more selected staple fibers of polyamide-based staple fibers, polyester-based staple fibers, and polypropylene-based staple fibers are separated by carding and fusing, and then formed into a ball aggregate , The standard deviation of the average diameter of the fibrous aggregate having the ball shape is 1 to 1.5, and the kurtosis is not less than 3, the fibrous aggregate having a uniform ball shape.

Also, the fibrous aggregate having a ball shape is characterized by having 600 to 1,200 g per 1 g of the fibrous aggregate.

Also provided is a fiber aggregate having a uniform ball shape, characterized in that the average diameter of the fiber aggregate having the ball shape is 3 to 20 mm.

Further, a fiber aggregate having a uniform ball shape, characterized in that a heat generating material is applied to one or more selected two or more of short fibers of the polyamide type short fiber, polyester short fiber and polypropylene type short fiber, Lt; / RTI >

In addition, the short fibers of the fibrous aggregate are characterized by having at least 50% by weight of the side by side hybrid fibers.

Further, the present invention provides a fiber aggregate having a uniform ball shape, characterized in that the composite fiber is a hollow composite fiber.

The carding machine is characterized in that two to four rollers each having a plurality of fins are crossed with each other so that the fins are engaged with each other. The carding machine is characterized in that the following formulas are satisfied: to provide.

Equation 2? L / G? 6

L: Short fiber cloth sheet

G: Spacing between pin and pin

Also, the present invention provides a fibrous aggregate having a uniform ball shape, characterized in that the above-mentioned hybridization is performed by wind power with a wind pressure of 100 to 200 mmAq and an air volume of 20 to 80 m < 3 > / min.

The fiber aggregate having a uniform ball shape according to the present invention as described above is manufactured in a ball shape by finely separating the used staple fibers through carding and fusing, so that the diameter of the fiber aggregate having a ball shape is uniform .

In addition, the size of the fiber aggregate having a ball shape can be made uniform so as to maximize the permeability and recoverability.

In addition, there is an effect that the heat generating property can be improved by applying a light emitting substance to the used short fibers to give light heat generating function.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a photograph showing Example 1 of a fiber aggregate having a ball shape having a uniform diameter according to the present invention. Fig.
Figs. 2 to 5 are graphs showing diameters of fibrous aggregates in Examples and Comparative Examples. Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that, in the drawings, the same components or parts have the same reference numerals as much as possible. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

As used herein, the terms " about, " " substantially, " " etc. ", when used to refer to a manufacturing or material tolerance inherent in the stated sense, Accurate or absolute numbers are used to help prevent unauthorized exploitation by unauthorized intruders of the referenced disclosure.

Fig. 1 is a photograph showing Example 1 of a fiber aggregate having a ball shape having a uniform diameter according to the present invention, and Figs. 2 to 5 are graphs showing diameters of fiber aggregates in Examples and Comparative Examples.

The present invention relates to a fiber aggregate having a ball shape having a uniform diameter, and is characterized by finely separating one or more selected two or more staple fibers of a polyamide-based staple fiber, a polyester-based staple fiber, and a polypropylene- And then formed into a ball shape to have a ball shape having a uniform diameter.

The fiber aggregate having the ball shape is manufactured including a fiber preparation step, a carding step, a fumigation step, and a ball type production step.

The fiber preparation step is a step of preparing short fibers to be formed of a fiber aggregate having a ball shape. In the present invention, a polyamide short fiber having a denier of 1.5 to 7, a polyester short fiber, One or two or more selected staple fibers may be prepared.

The fiber aggregate having the ball form of the present invention is a side-by-side type conjugated fiber which is made of staple fibers having at least 50% by weight of the short fibers used for increasing physical properties such as elasticity and permeability, .

In addition, hollow short fibers may be used to increase the accommodation ratio of the ball-shaped fibrous aggregate and to increase the warmth, and it is also preferable to use hollow composite fibers as the side-by-side composite fibers.

As described above, two or more staple fibers may be prepared for the property and functionality.

A photothermal material is applied to one or more selected two or more staple fibers of the polyamide-based staple fiber, polyester-based staple fiber, and polypropylene-based staple fiber by spraying with a binder to form a fiber aggregate having a ball shape, Function.

The carding step is a step of separating the supplied short fibers in a rolled state so that a subsequent mixing step can be performed smoothly.

The mixing step is a step of mixing the opened short fibers in the carding step by wind force. When two or more kinds of short fibers are used, the action of homogenizing the mixed fibers and completely separating the short fibers separated from the carding are performed.

The opening and fusing step is a step of separating the staple fibers so that the staple fibers can be uniformly ball-shaped in a ball-shaped manufacturing step to be performed at a later stage, so that the staple fibers must be separated one by one.

In the present invention, the opening step and the fusing step are very important steps for determining the uniformity and density of the fiber aggregate having a ball shape, and the fiber should be more uniformly separated than the ordinary opening and fusing step.

In order to separate staple fibers one by one as described above, the opening step in the present invention is carried out with a can opener in which two to four rollers having a plurality of fins are crossed with each other so that the fins are engaged with each other, Lt; / RTI >

Equation 2? L / G? 6

L: Short fiber cloth sheet

G: Spacing between pin and pin

The distance between the pin and the fin of the can opener can be adjusted according to the length of the short fiber. If the length of the short fiber is long, it is possible to separate the short fiber even if the distance between the pin and the pin is large. The spacing between them must also be narrowed.

If the distance between the pin and the pin is narrow, the fineness of the staple fibers can be finely separated. However, since the processing time may be long, it is preferable that the L / G value is 2 or more. But it is preferable that the L / G value does not exceed 6 since the uniformity of the ball-like fibrous aggregate may be lowered because the separation of the short fibers is not smooth.

The fiber length of the short fibers that can be used in the present invention is 15 to 60 mm, and the distance between the pin and the fin should be adjusted to suit the fiber length of the used short fiber.

In addition, it is preferable that the mixing step is performed by wind power with a wind pressure of 100 to 200 mmAq and an air volume of 20 to 80 m < 3 > / min so that the open staple fibers can be separated by wind and moved through wind power.

As described above, the short fibers can be separated without aggregation through the high wind force in the step of mixing.

The ball shape manufacturing step is a step of assembling the short fibers completely separated in the fusing step to form a ball shape.

In the ball manufacturing step, the short fibers are moved by the wind force, and the bent fin ends can be manufactured by moving in the direction perpendicular to the wind force. The short fibers moved by the wind force are formed by the bent fin When it is caught, a rotating torque is generated, and the tip is dried from the bent pin, so that it is bundled into a ball shape.

The ball type manufacturing step may be carried out through a manufacturing apparatus in which a rotatable roller having a plurality of finned ends and a wind power device capable of moving the short fibers are formed.

The fiber aggregate having a ball shape according to the present invention, which is manufactured as described above, can be adjusted in size by the amount of wind and the wind speed of the rotating speed short fiber of the rotatable roller having a plurality of bent fin ends. However, The average diameter of the fibrous aggregates having a ball shape is preferably 3 to 20 mm.

When a photothermal material is applied to a short fiber in order to impart a light exothermic function to the fiber aggregate having the ball form of the present invention, the opening and fusing step should be performed after applying a light exothermic substance to the short fiber, Separation will be possible.

As described above, the fiber aggregate having a uniform ball shape according to the present invention can produce a fibrous aggregate having a ball shape of uniform diameter by separating fine staple fibers by carding and fusing, The average standard deviation of the average diameter of 1 to 1.5, and the kurtosis is preferably 3 or more.

The standard deviation of the average diameter is a distribution of the fibrous aggregate and the kurtosis is a measure of the uniformity of the fibrous aggregate. When the standard deviation of the mean diameter is more than 1.5 and the kurtosis is less than 3, It will not be uniform.

In addition, the fiber aggregate having a uniform ball shape of the present invention has a higher density and better heat retention as the density of the fiber aggregate is lower.

The fiber aggregate having a uniform ball shape according to the present invention contains a plurality of fiber aggregates in 1 g, and the number per 1 g may vary depending on the diameter of the fiber aggregate. In the present invention, And the like.

Hereinafter, embodiments of a method for producing a fiber aggregate having a uniform ball shape according to the present invention will be described, but the present invention is not limited to the examples.

Example  1 to 3

The staple fiber uses 10 wt% of polyester short fibers having a fineness of 2.5 denier and a fiber length of about 22 to 32 mm, 90 wt% of side-by-side hollow conjugated fibers having a fineness of 3 denier and a fiber length of about 28 to 40 mm Respectively.

The staple fibers were opened using a can opener having a pin spacing of 8.3 mm and formed of four rollers, and staple fibers were separated by wind power with a wind pressure of 140 mmAq and an air flow rate of 50 m 3 / min.

(Example 1) and 5 mm (Example 1), respectively, using a manufacturing apparatus having a rotatable roller having a plurality of fin-shaped fins and a wind turbine capable of moving short fibers, Example 2), and 6 mm (Example 3). The fiber aggregate having the ball shape of Example 1 prepared above was photographed as shown in Fig.

◎ Measurement of average diameter and standard deviation

The average diameters, standard deviations, and kurtosis of the comparative examples of Examples 1 to 3 and the general ball fire sold by T Company were measured, and are shown in Table 1 and Figs. 2 to 4. FIG. 2 is a graph showing a distribution diagram of the embodiment 1, FIG. 3 is a graph showing a distribution diagram of the embodiment 2, FIG. 4 is a graph showing the distribution diagram of the embodiment 3, and FIG. 5 is a graph showing a distribution diagram of the comparative example.

1. Measurement and Calculation Method

end. After collecting 1 g of the fibrous aggregates having the ball shapes of Examples 1 to 3 and Comparative Examples, the fibrous aggregates having the spherical shape were separated one by one and the size was measured and classified in the range of 1 mm.

I. The mean values of the diameters, standard deviations, and kurtosis were calculated using the Excel program.

The average diameter, standard deviation, and kurtosis are calculated based on a large value in the diameter range. For example, a fiber aggregate having a ball shape having a diameter of 1 to 2 mm is calculated to have a diameter of 2 mm.

Diameter (mm) Example 1 Example 2 Example 3 Comparative Example 1-2 41 9 0 46 2.1 to 3 191 28 2 99 3.1 to 4 384 165 27 139 4.1 to 5 242 357 112 85 5.1 to 6 51 144 311 161 6.1 to 7 27 32 98 18 7.1 ~ 8 16 25 52 41 8.1 to 9 7 9 25 5 9.1 to 10 6 6 One 2 10.1 to 11 0 3 8 0 11.1 to 12 0 0 4 0 12.1 to 13 0 0 2 0 Number per 1g 965 778 652 597 Average diameter (mm) 4.3 5.15 6.35 4.79 Standard Deviation 1.29 1.26 1.42 1.67 Kurtosis 3.16 3.45 3.43 -0.38

As shown in Table 1, in Example 1, the number of fiber aggregates having a ball shape per 1 g is larger than that of Comparative Example 3, which means that the density is low.

In the comparative example, the standard deviation is 1.67 and the kurtosis is -0.38. As shown in FIG. 5, since the distribution is not concentrated, it can be judged that the uniformity of the diameter of the fiber aggregate having a ball shape is low. 3 has a standard deviation of about 1.2 to 1.4 and a kurtosis of 3.0 or more, as shown in FIGS. 2 to 4, the distribution is highly concentrated, so that it can be judged that the fiber aggregate having a ball shape has a very uniform diameter.

Claims (8)

The method according to any one of claims 1 to 3, wherein the polyamide-based staple fiber, the polyester-based staple fiber, and the polypropylene-based staple fiber are separated from each other by carding and fusing,
Wherein the fiber aggregate having a ball shape has a standard deviation of an average diameter of 1 to 1.5 and a kurtosis of 3 or more. The method according to claim 1,
Wherein the fiber aggregate having a ball shape is 600 to 1,200 g per 1 g of the fiber aggregate. The method according to claim 1,
And the average diameter of the fiber aggregate having the ball shape is 3 to 20 mm. The method according to claim 1,
The fiber aggregate having a uniform ball shape, characterized in that a photo-heating material is applied to one or more selected at least two of the polyamide-based staple fiber, polyester-based staple fiber, and polypropylene-based staple fiber. The method according to claim 1,
Wherein the staple fiber of the fibrous aggregate comprises 50% by weight or more of side-by-side staple fibers. 6. The method of claim 5,
Wherein the composite fiber is a hollow composite fiber. The method according to claim 1,
Wherein the carding is carried out by a can opener in which two to four rollers having a plurality of fins are crossed such that the fins engage with each other, and the following equation is satisfied.
Equation 2? L / G? 6
L: Short fiber cloth sheet
G: Spacing between pin and pin The method according to claim 1,
Wherein the blended fibers are blended with a wind force having a wind pressure of 100 to 200 mmAq and an air volume of 20 to 80 m < 3 > / min.

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