KR101745777B1

KR101745777B1 - non-woven fabric for water dispersion compound and absorbent pad comprising the same

Info

Publication number: KR101745777B1
Application number: KR1020150075072A
Authority: KR
Inventors: 위다연; 김도현
Original assignee: 도레이케미칼 주식회사
Priority date: 2015-05-28
Filing date: 2015-05-28
Publication date: 2017-06-09
Also published as: KR20160139712A

Abstract

The present invention relates to a nonwoven fabric for a water dispersing agent and an absorbent pad comprising the same, and more particularly, to a nonwoven fabric for a water dispersing agent having excellent bulkiness and resilience, Absorbing pad.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a nonwoven fabric for a water dispersion material,

BACKGROUND ART [0002] In general, an absorbent pad is a product that absorbs moisture and is widely known and used in various fields requiring moisture absorption.

Specifically, the use of the absorbent pad shows that the liquid discharged from the food can be absorbed and stored separately from the food, and it is discharged from the meat of the carcass of the livestock (carcass), except for the bone and fresh fat mass, For absorbing and storing the liquid discharged from the meat, which is the portion of the meat, which is the part of the meat, for absorbing and storing the liquid, and for absorbing the sweat generated in the foot when the shoe is worn and for sanitary, medical or dog- It can be used for applications.

The absorbent pad may be composed of a superabsorbent particle capable of absorbing and retaining moisture and an absorbent body formed of a material such as pulp fiber. In order to increase the absorbing performance of the absorbent pad, Korean Patent Publication No. 2011-002742 Discloses an absorbent pad having an active carbon ink for odor control. Korean Patent Laid-Open No. 2005-0008018 discloses an absorbent pad for absorbing food liquid.

Meanwhile, a method of increasing the absorption performance of the absorber may include a separate component. For example, the absorber may be laminated on at least one side of the absorber to rapidly absorb moisture, and may diffuse moisture before the absorber is transferred And a moisture dispersing material for transferring the moisture to the absorber.

In order to maximize the function of such a water dispersing agent, it is preferable that the material is made of a nonwoven fabric having a low fiber density and a high bulky property, but a nonwoven fabric made of a conventional olefin-based material has a low resilience of the fiber itself, There is a problem that the manufacturing cost is increased because the material having a high basis weight is consumed when the nonwoven fabric for a water dispersing material is consumed.

Therefore, it is urgent to develop a nonwoven fabric for moisture dispersing material which can maintain or improve the performance of the conventional nonwoven fabric for moisture dispersing material and which is low in manufacturing cost.

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 an object of the present invention is to provide a nonwoven fabric for a moisture dispersing agent having excellent bulkiness and resilience.

The present invention also provides a moisture-dispersing material having excellent water absorption and diffusion performance and an absorbent pad comprising the same.

Disclosure of the Invention In order to solve the above-described problems, the present invention provides a water dispersing material comprising a low melting point (LM) adhesive fiber including a component having a melting point of 100 to 200 DEG C and a hollow fiber having a hollow ratio of 10 to 40% Thereby providing a nonwoven fabric.

According to a preferred embodiment of the present invention, the nonwoven fabric for a water dispersant of the present invention comprises 190 to 290 parts by weight of polyethylene terephthalate (PET) hollow fibers per 100 parts by weight of the low melting point (LM) polyester- .

According to another preferred embodiment of the present invention, the fineness of the low melting point adhesive fiber of the nonwoven fabric for a water dispersant of the present invention may be 2 to 10 denier and the fiber length may be 20 to 70 mm.

According to another preferred embodiment of the present invention, the fineness of the hollow fiber of the nonwoven fabric for a water dispersant of the present invention may be 1 to 20 deniers and the fiber length may be 20 to 70 mm.

According to another preferred embodiment of the present invention, the hollow fiber of the nonwoven fabric for a water dispersant of the present invention may include a first hollow fiber having a fineness of 6 to 20 denier and a second hollow fiber having a fineness of 1.5 to 5 denier have.

According to another preferred embodiment of the present invention, the nonwoven fabric for a water dispersant of the present invention may comprise 80 to 120 parts by weight of the second hollow fiber with respect to 100 parts by weight of the first hollow fiber.

According to another preferred embodiment of the present invention, the low melting point adhesive fiber of the nonwoven fabric for a water dispersant of the present invention is a sheath-core type composite wherein the sheath portion is a low melting point (LM) polyester and the core portion is polyethylene terephthalate (PET) Fibers.

According to another preferred embodiment of the present invention, the melting point of the low melting point (LM) polyester of the sheath portion of the nonwoven fabric for a water dispersing material of the present invention is from 110 to 180 캜 and the intrinsic viscosity is from 0.5 to 0.9 dl / g, The melting point of the polyethylene terephthalate (PET) in the core portion may be 200 to 260 占 폚 and the intrinsic viscosity may be 0.6 to 1.0 dl / g.

According to another preferred embodiment of the present invention, the weight ratio of the sheath portion and the core portion of the sheath-core type conjugate fiber of the nonwoven fabric for a water dispersant of the present invention may be 8: 2 to 2: 8.

According to another preferred embodiment of the present invention, the low melting point adhesive fiber of the nonwoven fabric for a water dispersant of the present invention is a thermoplastic polyester elastomer having a melting point of 140 to 160 DEG C, an intrinsic viscosity of 1.0 to 2.0 dl / g, A polyester having a melting point of 255 to 265 DEG C and an intrinsic viscosity of 0.45 to 0.80 dl / g.

(TPA), dimethyl terephthalate (DMT), isophthalic acid (IPA), and dimethyl isophthalate (DMI) are used as the thermoplastic polyester elastomer of the nonwoven fabric for a water dispersing material of the present invention, according to another preferred embodiment of the present invention. And at least one diol component comprising at least one of poly (tetramethylene ether) glycol (PTMG), 1,4-butanediol (1,4-BD) and ethylene glycol (EG) , And may have a hard segment-soft segment structure.

According to another preferred embodiment of the present invention, the thermoadhesive conjugate fiber of the nonwoven fabric for a water dispersant of the present invention may be a circular or heterogeneous hollow eccentric side-by-side type.

According to another preferred embodiment of the present invention, the hollow fiber of the nonwoven fabric for a water dispersing material of the present invention may comprise a polyethylene terephthalate (PET) hollow fiber.

According to another preferred embodiment of the present invention, the nonwoven fabric for a water dispersant of the present invention may have a thickness of 6 mm or more when the basis weight is 30 g / m 2.

On the other hand, a water dispersing material comprising the above-mentioned nonwoven fabric for a moisture dispersing material of the present invention is provided.

Further, the present invention provides an absorbent pad characterized by comprising an absorbent body for absorbing moisture and a moisture-dispersing agent according to claim 15 deposited on at least one surface of the absorbent body, and diffusing and transferring the moisture to the absorbent body.

According to a preferred embodiment of the present invention, the absorbent pad of the present invention can be used for at least one of food, poultry, medical, sanitary, and dog.

The nonwoven fabric for a water dispersant of the present invention and the absorbent pad including the same are excellent in terms of bulkiness and resilience and excellent in water absorption and diffusion performance.

1 is a schematic view of a cis-core type conjugate fiber according to a preferred embodiment of the present invention.
Fig. 2 is a diagram of a circular eccentric side-by-side heat-sealable composite fiber according to an embodiment of the present invention.
3 is a view of an eccentric side-by-side type thermo-adhesive composite fiber according to one preferred embodiment of the present invention.
4 is a cross-sectional view of the absorbent pad taken along line A-A 'in accordance with a preferred embodiment of the present invention.
5 to 7 are schematic views illustrating the use of an absorbent pad according to a preferred embodiment of the present invention.

Hereinafter, the present invention will be described in more detail.

As described above, a method of increasing the absorption performance of the absorber may include a separate component. For example, the absorber may be laminated on at least one surface of the absorber to rapidly absorb moisture, And a moisture dispersing material which diffuses and transfers the moisture to the absorber.

Accordingly, the present invention provides a nonwoven fabric for a moisture dispersing material, which comprises a low melting point (LM) adhesive fiber containing a component having a melting point of 100 to 200 DEG C and a hollow fiber having a hollow ratio of 10 to 40% The present invention provides a nonwoven fabric for a moisture dispersing material which is excellent in bulkiness and resilience and which is excellent in water absorption and diffusion performance including a nonwoven fabric for a water dispersing material of the present invention, Can be provided.

The nonwoven fabric for a water dispersant of the present invention comprises low melting point (LM) adhesive fibers and hollow fibers.

First, the low melting point (LM) adhesive fiber includes a component having a melting point of 100 to 200 ° C, preferably 110 to 180 ° C. If the melting point is less than 100 ° C, And when the melting point exceeds 200 DEG C, the manifestation of the low melting point effect may be lowered.

Next, the hollow fiber may have a hollow ratio of 10 to 40%, preferably 12 to 25%. If the hollow ratio is less than 10%, the nonwoven fabric may have a reduced thickness and bulkiness, If it exceeds 40%, there may be a problem in that the morphology stability of the constituent fibers is deteriorated in the nonwoven carding process.

In the meantime, the nonwoven fabric for a water dispersant of the present invention may contain 190 to 290 parts by weight, preferably 210 to 260 parts by weight of the hollow fiber to 100 parts by weight of the low melting point (LM) adhesive fiber.

If the nonwoven fabric for a water dispersant of the present invention contains less than 190 parts by weight of hollow fibers with respect to 100 parts by weight of low melting point (LM) adhesive fibers, the adhesion point is increased to reduce the thickness of the nonwoven fabric, If it is contained in an amount exceeding 290 parts by weight, the adhesion point may decrease and the problem of the morphological stability of the nonwoven fabric may be deteriorated.

On the other hand, the low melting point adhesive fiber of the present invention may have a fineness of 2 to 10 denier, preferably 4 to 8 denier. If the fineness is less than 2 denier, the spacing of the constituent fibers decreases and the adhesive point increases, There may be a problem. If it exceeds 10 denier, the bonding point may decrease and there may be a problem of lowering the surface uniformity of the nonwoven fabric.

The low melting point adhesive fiber of the present invention may have a fiber length of 20 to 70 mm, preferably 40 to 60 mm, more preferably 45 to 55 mm. If the fiber length is less than 20 mm, There may be a problem that the carding workability and the stability of the nonwoven fabric are inferior. When the thickness exceeds 70 mm, entanglement of the constituent fibers increases in the nonwoven carding process, which may cause a problem of lowering the surface uniformity of the nonwoven fabric.

1, the sheath portion 2a is a low melting point (LM) polyester, and the core portion 2b is made of a polyethylene terephthalate (PET) sheath-core type And may include the conjugate fiber 2.

First, the sheath 2a is a low melting point (LM) polyester. Specifically, the melting point of the low melting point polyester is preferably 110 to 180 ° C. When the melting point is within the range, the low melting point polyester may be polyethylene terephthalate or modified polyethylene terephthalate. If the melting point of the low melting point polyester is less than 110 캜, there may be a problem of detachment discharge and the spinning workability may be deteriorated. If the melting point exceeds 180 캜, the low melting point effect may be lowered. The low melting point polyester may have an intrinsic viscosity of 0.5 to 0.9 dl / g. If the intrinsic viscosity is less than 0.5 dl / g, there may be problems in the cullet discharge and section formation. If the intrinsic viscosity exceeds 0.9 dl / g, there may be a problem in manifesting the low melting point effect.

Next, the core portion 2b may include polyethylene terephthalate (PET), and may specifically include modified polyethylene terephthalate. In the case of polyethylene terephthalate usually contained in the low melting point fiber, Can be used.

The modified polyethylene terephthalate may further include a sulfonated metal salt in addition to a conventional monomer, and as a non-limiting example, a dimethylsulfone isophthalate sodium salt may be used. In addition, aromatic polycarboxylic acids other than terephthalic acid may be further included as a monomer, and as a non-limiting example, it may be any one or more of dimethyl terephthalate, isophthalate, and dimethyl isophthalate. Further, as the diol component, a diol component other than ethylene glycol may be further included as a monomer. Examples of such a diol component include neopentyl glycol, diethylene glycol, neopentyl glycol, 1,3-propanediol, 4-butanediol, 1,6-hexanediol, and the like.

remind The melting point of the polyethylene terephthalate may preferably be 200 to 260 캜. If the melting point of the polyethylene terephthalate is less than 200 ° C, there may be problems in spinning and cross-sectional formation. If the melting point exceeds 260 ° C, there may be a radiation problem due to cross-sectional formation and high-temperature spinning.

The polyethylene terephthalate may have an intrinsic viscosity of 0.6 to 1.0 dl / g. If the intrinsic viscosity is less than 0.6 dl / g, there may be a problem in cross-section formation. If the intrinsic viscosity exceeds 1.0 dl / g, the pack pressure may be high and there may be a problem with radioactivity.

On the other hand, the weight ratio of the sheath portion 2a and the core portion 2b in the sheath-core type conjugate fiber 2 of the present invention may be 8: 2 to 2: 8. If the above range is not satisfied, the morphological stability of the composite fiber may be remarkably decreased or the fusion strength may be lowered.

2 and 3, the low melting point adhesive fiber of the present invention is a thermoplastic polyester elastomer having an intrinsic viscosity of 140 to 160 DEG C and an intrinsic viscosity of 1.0 to 2.0 dl / g, and a thermoplastic polyester elastomer having a melting point of 255 to 265 DEG C And a polyester having a melting point of 0.45 to 0.80 dl / g and an intrinsic viscosity of 0.45 to 0.80 dl / g.

First, the thermoplastic polyester elastomer (A) has a melting point of 140 to 160 ° C and an intrinsic viscosity of 1.0 to 2.0 dl / g, so that the thermosetting conjugate fiber obtained has a function of imparting elasticity and a heat- And imparts a function of bonding to adjacent fibers.

Wherein the thermoplastic polyester elastomer (A) comprises an acid component comprising at least one of terephthalic acid (TPA), dimethyl terephthalate (DMT), isophthalic acid (IPA) and dimethyl isophthalate (DMI), poly (tetramethylene ether) And a copolymer of a diol component polymerized with at least one of glycol (PTMG), 1,4-butanediol (1,4-BD) and ethylene glycol (EG) And a high elastic recovery rate can be obtained.

The acid component and the diol component of the thermoplastic polyester elastomer (A) can be reacted at a molar ratio of 1: 1, and generally, some diol components may be added in excess to improve the polymerization reactivity. In other words, when terephthalic acid is used as the acid component to improve the polymerization reactivity, a diol component of 1.2 to 1.4 moles per mole of terephthalic acid may be added. When dimethyl terephthalate is used as the acid component, 1 mole of dimethyl terephthalate 1.4 to 1.8 moles of the diol component is added to the thermoplastic polyester elastomer (A) to produce the thermoplastic polyester elastomer (A).

The thermoplastic polyester elastomer (A) may have an elastic recovery rate within a range of 85 to 100%. If the elastic recovery rate of the thermoplastic polyester elastomer (A) is less than 85%, the elastic and / or elastic recovery rate of the thermally adhesive conjugated fiber and the thermally adhesive conjugated composite fiber obtained according to the present invention , Shape stability and the like may be lowered.

The acid component constituting the thermoplastic polyester elastomer (A) may be a mixture of 70 to 80 mol% of terephthalic acid and 20 to 30 mol% of isophthalic acid, and the diol component may be 80 to 95 mol% Butanediol, 5 to 20 mol% of poly (tetramethylene ether) glycol and ethylene glycol (EG).

Next, since the polyester (B) of the thermally adhesive composite fiber has a melting point of 255 to 265 DEG C and an intrinsic viscosity of 0.45 to 0.80 dl / g, the thermally adhesive composite fiber and the nonwoven fabric It is possible to impart strength and shape stability as high as possible to post-processing.

The polyester (B) of the thermosetting conjugate fiber can use not only new polyester but also recycled polyester obtained by regenerating waste polyester as a scrap generated in the production process of polyester product.

On the other hand, the thermosetting conjugate fiber has a thermoplastic polyester elastomer (A) having a melting point of 140 to 160 DEG C and an intrinsic viscosity of 1.0 to 2.0 dl / g, a melting point of 255 to 265 DEG C, a melting point of 0.45 to 0.80 dl / g (B) having an intrinsic viscosity, and a latent crimp-based development in which thermo-adhesive conjugate fibers are crimped by the fiber cross-sectional shape and intrinsic viscosity difference of the polymer or a subsequent heat treatment process condition, Lt; RTI ID = 0.0 > elasticity < / RTI >

In addition, the thermoplastic polyester elastomer (A) may have a hard segment-soft segment structure, and can exhibit chemical structural elasticity and elastic recovery rate by such a structure.

In addition, the latent crimpability in which crimp is formed on the thermosetting conjugate fiber can give high elasticity and bulkiness of the nonwoven fabric made of the thermosetting conjugate fiber.

Further, the thermosetting conjugate fiber may have a circular eccentric side-by-side shape as shown in FIG. 2 or an eccentric side-by-side structure of a hollow hollow as shown in FIG.

On the other hand, the hollow fibers included in the nonwoven fabric for a water dispersant of the present invention may have a hollow ratio of 10 to 40%, preferably 12 to 25%, as described above. At this time, the hollow fiber may include a polyethylene terephthalate (PET) hollow fiber.

When the hollow fiber is a PET-based hollow fiber, the specific copolymerization composition is not particularly limited and may include modified polyethylene terephthalate. As a non-limiting example, the modified polyethylene terephthalate may further include a sulfonated metal salt in addition to conventional monomers, and as a non-limiting example, dimethylsulfone isophthalate sodium salt may be used. In addition, aromatic polycarboxylic acids other than terephthalic acid may be further included as a monomer, and as a non-limiting example, it may be any one or more of dimethyl terephthalate, isophthalate, and dimethyl isophthalate. Further, as the diol component, a diol component other than ethylene glycol may be further included as a monomer. Examples of such a diol component include neopentyl glycol, diethylene glycol, neopentyl glycol, 1,3-propanediol, 4-butanediol, 1,6-hexanediol, and the like.

remind The melting point of the hollow fibers may be from 200 to 260 캜. If the melting point of the polyethylene terephthalate (PET) hollow fiber is less than 200 ° C, there may be a problem in cross-sectional formability. If the melting point exceeds 260 ° C, the spinning temperature is too high.

The hollow fiber may have an intrinsic viscosity of 0.6 to 1.0 dl / g. If the intrinsic viscosity is less than 0.6 dl / g, there may be a problem in cross-sectional formability. If the intrinsic viscosity exceeds 1.0 dl / g, the PACK pressure may be high, which may lead to radioactivity problems.

On the other hand, the hollow fiber may have a fiber length of 20 to 70 mm, preferably 35 to 55 mm. If the fiber length is less than 20 mm, the physical bonding of the constituent fibers in the nonwoven carding process is insufficient, , And if it exceeds 70 mm, entanglement of the constituent fibers in the nonwoven carding process may increase, which may cause a problem of lowering the surface uniformity of the nonwoven fabric.

Further, the hollow fiber may have a fineness of 1 to 20 denier, preferably a first hollow fiber having a fineness of 6 to 20 denier and a second hollow fiber having a fineness of 1.5 to 5 denier.

Specifically, the hollow fiber may be a mixture of a first hollow fiber having a fineness of 6 to 20 denier and a second hollow fiber having a relatively small fineness of 1.5 to 5 denier.

If the hollow fiber is composed only of the first hollow fiber, the bulkiness and resilience of the hollow fiber may be excellent, but the water diffusibility is poor. If the hollow fiber is composed only of the second hollow fiber The water diffusibility may be excellent, but the bulkiness and resilience of the water may be poor.

Accordingly, the hollow fiber of the present invention simultaneously contains both the first hollow fiber and the second hollow fiber, thereby manufacturing a nonwoven fabric for a water dispersing material of the present invention having excellent bulkiness and resilience as well as water diffusibility You can.

The hollow fiber may include 80 to 120 parts by weight, preferably 90 to 110 parts by weight, of the second hollow fiber with respect to 100 parts by weight of the first hollow fiber. If 100 parts by weight of the first hollow fiber is used, If the fibers are contained in an amount of less than 80 parts by weight, there may be a problem of lowering the diffusibility due to rapid passage of water and lowering the surface uniformity of the nonwoven fabric. If the fibers are contained in an amount exceeding 120 parts by weight, have.

Furthermore, since the above-mentioned nonwoven fabric for a water dispersant of the present invention has a basis weight of 30 g / m < 2 > and a thickness of 6 mm or more, bulkiness can be superior to that of a conventional nonwoven fabric.

The present invention provides a moisture-dispersing material comprising the above-mentioned nonwoven fabric for a water-dispersing material of the present invention, and the above-mentioned moisture-dispersing material can collectively be referred to as a product that not only rapidly absorbs moisture but also functions to diffuse moisture.

Further, the present invention provides an absorbent pad including an absorbent body for absorbing moisture and at least one moisture dispersing agent which is laminated on at least one surface of the absorbent body and diffuses the moisture to transfer it to the absorbent body.

4, the absorbent pad of the present invention may have a structure in which the inner sheet 10, the water dispersing material 20, the absorbent body 30 and the outer sheet 40 are sequentially laminated from the inside.

The absorbent pad 100 is in contact with all or a part of the inner sheet 10, the water dispersing material 20, the absorbent 30 and the outer sheet 40, Or may be a structure in which all or a part of the layers are sequentially stacked.

The inner sheet 10 may be a liquid-permeable sheet in which moisture is absorbed. Specifically, the inner sheet 10 may be a liquid-permeable fabric, non-woven fabric, or perforated thermoplastic film that readily passes moisture.

The moisture-dispersing material 20 performs a function of passing and diffusing moisture, and may include the nonwoven fabric for the above-mentioned moisture-dispersing material.

The absorber 30 absorbs moisture that has passed through the inner sheet 10 at a high speed and retains moisture to prevent the absorbed moisture from being discharged to the outside. The absorber 30 may be composed of a fluff pulp, a superabsorbent polymer, or the like, and a tissue 31 surrounding a part or the entire surface of the absorber 30 may be formed .

The outer sheet 40 may be positioned adjacent to the absorber 30 in a direction opposite to the inner sheet 10 where moisture is absorbed.

In addition, the outer sheet 40 can function as a liquid impermeable material to prevent the moisture absorbed in the absorbent body 30 from escaping from the absorbent pad 100 and contamination of the surroundings due to moisture.

The outer sheet 40 may be made of a thin plastic film, and may be formed by adding an inorganic substance such as calcium carbonate or the like and forming (extruding or extruding) the micropores in the plastic film so that the vapor escapes from the absorber 30 Can be done.

In addition, the outer sheet 40 may be a thermoplastic film, preferably a polyethylene film or a polypropylene film.

Meanwhile, the absorbent pad of the present invention can be used for at least one of food, diet, medical, sanitary, and dog.

Specifically, the absorbent pad of the present invention has an inner sheet 10 of an absorbent pad having a structure in which the inner sheet 10, the water dispersing material 20, the absorbent 30 and the outer sheet 40 are sequentially laminated, (A) such as fish or the like on the surface of the food (10) so that the liquid discharged from the food is separated and separated from the food.

6, the absorbent pad of the present invention includes an absorbent pad 30 including a water dispersing material 20 and an absorbent body 30 between an upper pad 11 and a lower pad 41, (100) to be used for hygiene for absorbing perspiration generated in the wearer's foot.

7, the absorbent pad 100 of the present invention can be used in a medical system for absorbing body fluids lying on a bed 200 or a chair, above or below a patient under certain types of medical procedures .

However, the absorbent pad shown in FIGS. 5 to 7 is not limited to the above-described embodiments, and may be used for absorbing menstrual blood in addition to the absorbent pad of the present invention. Such as a sanitary napkin and a panty liner, having a moisture content of at least < RTI ID = 0.0 > 50% < / RTI >

The present invention will now be described more specifically with reference to the following examples. However, the following examples should not be construed as limiting the scope of the present invention, and should be construed to facilitate understanding of the present invention.

Example

Example One

(TCK, EZBON-L) having a denier of 4 denier and a fiber length of 51 mm as a low melting point (LM) adhesive fiber, a yarn having a fineness of 12 denier, a fiber length of 64 mm, a hollow ratio of 18 Polyethylene terephthalate (PET) first hollow fibers (TCK, AIRCLO) and second hollow fibers (TCK, HC) having a fineness of 3 denier, a fiber length of 51 mm and a hollow ratio of 12% And then a thin web was formed by carding. The web was laminated and then subjected to a roller-type air-through bonding process at 180 ° C. to prepare a heat-bonded nonwoven fabric having a basis weight of 30 g / .

At this time, 116.7 parts by weight of the first hollow fiber and 116.7 parts by weight of the second hollow fiber were mixed with 100 parts by weight of the low melting point (LM) adhesive fiber.

(2) An absorbent pad was produced by applying the fabricated nonwoven fabric to the moisture-dispersing material 20 laminated between the inner sheet 10 and the absorber 30 shown in Fig.

Example 2

The second hollow fiber of the nonwoven fabric for water dispersant had a fineness of 12 denier, a fiber length of 64 mm and a hollow ratio of 12 denier instead of the hollow fiber having a fineness of 3 denier, a fiber length of 51 mm and a hollow ratio of 12% Hollow fibers of 18% were used.

Example 3

Except that the first hollow fiber of the nonwoven fabric for water dispersant had a fineness of 3 denier, a fiber length of 51 mm and a hollow ratio of 12 denier instead of the fiber having a fineness of 12 denier, a fiber length of 64 mm and a hollow ratio of 18% 12% hollow fibers were used.

Example 4

116.7 parts by weight of the first hollow fiber and 80 parts by weight of the second hollow fiber were mixed with 100 parts by weight of the low melting point (LM) adhesive fiber.

Example 5

116.7 parts by weight of the first hollow fiber and 150 parts by weight of the second hollow fiber were mixed with 100 parts by weight of the low melting point (LM) adhesive fiber.

Example 6

(TCK, E-PLEX) having a fineness of 6 denier and a fiber length of 64 mm as the low melting point (LM) adhesive fiber was produced in the same manner as in Example 1, And subjected to a roller-type 180 ° C air-through bonding process.

Example 7

Example 8

The first hollow fiber of the nonwoven fabric for a water dispersant was prepared in the same manner as in Example 6 except that the hollow fiber having a fineness of 12 denier, a fiber length of 64 mm and a hollow ratio of 18% had a fineness of 3 denier, a fiber length of 51 mm, 12% hollow fibers were used.

Example 9

Example 10

Comparative Example One

(1) A thin web was formed by carding a circular eccentric sheath-core type PE / PET fiber (ES fibervision, ESC-UB) having a fineness of 5 denier and a fiber length of 51 mm, The air-through bonding process was used to prepare a heat-bonded nonwoven fabric having a basis weight of 30 g / m 2.

Experimental Example One

The following physical properties of the absorbent pad prepared through the above Examples and Comparative Examples were measured and shown in Table 1.

(1) Absorption performance

A cylindrical dosing ring having an inner diameter of 5 cm and a height of 10 cm is placed on the inner sheet of the manufactured absorbent pad, and water is filled therein.

① First reflux: 80 mL of water was absorbed once into the absorbent pad, and then the amount of backwash was measured on the absorbent paper.

② Secondary reflux: After the first reflux, 80 ml of water was reabsorbed and the amount of residue on the absorbent paper was measured.

③ Absorption time: The time required to completely absorb 80 ml of water was measured.

④ Absorption area: After 80 ml of water was completely absorbed, the absorber was separated and the area of urine contact on the absorber surface was measured using an area gauge.

(2) Method of measuring skin dryness rate

The absorbing pad, in which 80 ml of water was completely absorbed, was placed in an environment of a temperature of 30 ° C and a humidity of 65 ± 2%, and the time taken until the dampness was not felt by contacting the inner sheet with the back of the inner sheet at 1 minute intervals was measured.

Example
One Example
2 Example
3 Example
4
Nonwoven fabric for moisture dispersing material
Basis weight
(g / m 2) 30 30 30 30 thickness
(mm) 7.0 6.5 6.0 6.5

Absorption performance
1st reflux
(g) 0.1 0.2 0.3 0.2 2nd reflux
(g) 2.0 3.2 4.5 2.8 Absorption time
(second) 26.0 27.3 31.2 28.1 Absorption area
(㎠) 50 45 48 40 Skin dry speed (min) 3 5 8 4 Example
5 Example
6 Example
7 Example
8
Nonwoven fabric for moisture dispersing material Basis weight
(g / m 2) 30 30 30 30 thickness
(mm) 6.5 9.0 8.5 7.0

Absorption performance
1st reflux
(g) 0.3 0.1 0.2 0.3 2nd reflux
(g) 4.0 1.8 3.0 4.7 Absorption time
(second) 29.5 24.0 18.8 30.9 Absorption area
(㎠) 47 53 32 50 Skin dry speed (min) 7 3 5 7 Example
9 Example
10 Comparative Example
One
Nonwoven fabric for moisture dispersing material Basis weight
(g / m 2) 30 30 30 thickness
(mm) 8.5 8.0 3.0

Absorption performance
1st reflux
(g) 0.2 0.3 0.3 2nd reflux
(g) 2.8 4.5 5.5 Absorption time
(second) 21.2 27.4 32.2 Absorption area
(㎠) 34 48 36 Skin dry speed (min) 4 7 9

As can be seen from the above Table 1, it was confirmed that the absorbent pad prepared in the Example had better absorption performance and skin dry speed than the absorbent pad prepared in Comparative Example.

Specifically, comparing the absorbent pads manufactured in Examples 1 to 5, it was confirmed that the absorbent pad prepared in Example 1 had the best absorption performance and skin dryness rate.

In addition, when the absorbent pads prepared in Examples 6 to 10 were compared, it was confirmed that the absorbent pad prepared in Example 6 had the best absorption performance and skin dryness rate.

Claims

Wherein the hollow fiber has a hollow ratio of 10 to 40% in an amount of 190 to 290 parts by weight based on 100 parts by weight of a low melting point (LM) adhesive fiber including a component having a melting point of 100 to 200 占 폚.

delete

The method according to claim 1,
Wherein the low melting point adhesive fiber has a fineness of 2 to 10 denier and a fiber length of 20 to 70 mm.

The method according to claim 1,
Wherein the hollow fiber has a fineness of 1 to 20 denier and a fiber length of 20 to 70 mm.

5. The method of claim 4,
Wherein the hollow fiber includes a first hollow fiber having a fineness of 6 to 20 denier and a second hollow fiber having a fineness of 1.5 to 5 denier.

6. The method of claim 5,
Wherein the second hollow fiber comprises 80 to 120 parts by weight of the second hollow fiber with respect to 100 parts by weight of the first hollow fiber.

The method according to claim 1,
Wherein the low melting point bonding fiber is a low melting point (LM) polyester having a sheath portion and the core portion is polyethylene terephthalate (PET).

8. The method of claim 7,
(LM) polyester has a melting point of 110 to 180 DEG C and an intrinsic viscosity of 0.5 to 0.9 dl / g. The polyethylene terephthalate (PET) of the core portion has a melting point of 200 to 260 DEG C and an intrinsic viscosity of 0.6 To 1.0 dl / g, based on the total weight of the non-woven fabric.

8. The method of claim 7,
Wherein the weight ratio of the sheath portion and the core portion in the sheath-core type conjugate fiber is 8: 2 to 2: 8.

The method according to claim 1,
Wherein the low melting point adhesive fiber comprises a thermoplastic polyester elastomer having a melting point of 140 to 160 DEG C and an intrinsic viscosity of 1.0 to 2.0 dl / g, a polyester having an intrinsic viscosity of 255 to 265 DEG C and an intrinsic viscosity of 0.45 to 0.80 dl / g Wherein the thermosetting conjugated fiber is a thermosetting conjugate fiber comprising a thermosetting conjugated fiber.

The thermoplastic polyester elastomer composition according to claim 10, wherein the thermoplastic polyester elastomer
An acid component containing at least one of terephthalic acid (TPA), dimethyl terephthalate (DMT), isophthalic acid (IPA) and dimethyl isophthalate (DMI), poly (tetramethylene ether) glycol (PTMG), 1,4- (1,4-BD) and ethylene glycol (EG), wherein the diol component is polymerized,
Characterized in that it has a hard segment-soft segment structure.

11. The method of claim 10,
Wherein the thermosetting conjugated fiber is an eccentric side-by-side type of circular or heterogeneous hollow.

The method according to claim 1,
Wherein the hollow fiber comprises a polyethylene terephthalate (PET) hollow fiber.

The method according to claim 1,
Wherein the nonwoven fabric has a basis weight of 6 mm or more when the basis weight is 30 g / m 2.

A moisture dispersing material comprising a nonwoven fabric for a water dispersing agent according to any one of claims 1 to 14.

An absorber for absorbing moisture; And
The moisture-dispersing material according to claim 15, which is laminated on at least one surface of the absorber and diffuses the moisture to transfer it to the absorber.
Wherein the absorbent pad comprises an absorbent core.

17. The method of claim 16,
Wherein the absorbent pad is used for at least one of food, poultry, medical, sanitary, and dog use.