KR101753867B1 - Elastic composite nonwoven fabric and manufacturing apparatus thereof - Google Patents

Elastic composite nonwoven fabric and manufacturing apparatus thereof Download PDF

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Publication number
KR101753867B1
KR101753867B1 KR1020150091303A KR20150091303A KR101753867B1 KR 101753867 B1 KR101753867 B1 KR 101753867B1 KR 1020150091303 A KR1020150091303 A KR 1020150091303A KR 20150091303 A KR20150091303 A KR 20150091303A KR 101753867 B1 KR101753867 B1 KR 101753867B1
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elastic sheet
nonwoven fabric
elastic
web
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KR1020150091303A
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Korean (ko)
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KR20170001384A (en
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안재은
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(주) 미벨라
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics
    • D04H13/001—Making non-woven fabrics from staple fibres, filaments or yarns, bonded to at least one web-like material, e.g. woven, knitted non-woven fabric, paper, leather, during consolidation
    • D04H13/003—Making non-woven fabrics from staple fibres, filaments or yarns, bonded to at least one web-like material, e.g. woven, knitted non-woven fabric, paper, leather, during consolidation strengthened or consolidated by mechanical methods

Abstract

The present invention relates to a nonwoven fabric, and more particularly, to an environmentally-friendly elastic composite nonwoven fabric capable of having a predetermined elasticity by bonding a nonwoven fabric to one or both surfaces of the elastic sheet, .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an elastic composite nonwoven fabric,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nonwoven fabric and an apparatus for producing the same, and more particularly, to an elastic composite nonwoven fabric which is water-flow-bonded to one side or both sides of an elastic sheet.

Non-woven fabrics are used for materials such as towels, tissues, kitchen towels and industrial wipers. The nonwoven fabric is also used as a material for cosmetic packs, medical bands, and medical pads. In particular, hygienic articles such as cosmetic packs and medical bands are required to have excellent elasticity and environmentally friendly characteristics. That is, the sanitary article should be resilient and harmless to the human body because it is attached or wound on the curved part such as the face, arms, and legs.

8 shows an apparatus for manufacturing a spunlaced nonwoven fabric according to the prior art. As shown in the drawing, the conventional nonwoven fabric manufacturing apparatus comprises a conveyor means 25, a web feeding means 30 for supplying a web to the upper surface of the conveyor means 25, and a high- And water spraying means 40 for spraying. Therefore, the web supplied to the upper surface of the conveyor means 25 horizontally moves along the conveyor means 25. [ The webs of the web are entangled with each other by the high-pressure water injected from the water injecting means 40 to produce a nonwoven fabric. Such a spunlaced nonwoven fabric has an advantage of being environmentally friendly since it does not use an adhesive.

However, since the spun lace nonwoven fabric hardens as the web of short fibers is piled up, the stretchability of the tissue is limited and stiff. Also, there is no elasticity, and if pulled, it tears. Therefore, when it is used as a cosmetic pack or a medical band, there is a problem that the adhesiveness is poor and it can not be used repeatedly.

Accordingly, there has been developed a technique for manufacturing a fiber pile of a nonwoven web with an elastic material having elasticity and flexibility. However, such elastic materials have a problem of high cost, high strength, and complicated manufacturing process. Further, there is known a method of attaching an elastic sheet to one surface or both surfaces of a conventional spunlaced nonwoven fabric with an adhesive, but there is a problem that the use of an adhesive may be harmful to a human body.

Recently, an elastic nonwoven fabric composite in which a nonwoven fabric is bonded to an elastic sheet has been disclosed. 9 shows a manufacturing process of an elastic nonwoven fabric composite made of a necking nonwoven fabric 820. The elastic nonwoven fabric 800 is produced by sandwiching the nonwoven fabrics 820 and 820 on both sides of the elastic film 870 in a sandwich manner. The produced elastic nonwoven fabric composite 800 has stretch elasticity and shrinkage elasticity of the elastic film, tensile strength of the necking nonwoven fabric and extensibility inherent in the necking nonwoven fabric to combine with each other to have stretch elasticity in the width direction x.

However, such an elastic nonwoven fabric composite is accompanied by a necking process, which increases the manufacturing cost and hardens the nonwoven fabric fibers during the necking process, thereby reducing the flexibility of the nonwoven fabric fibers.

As a result, the composite process of stretching the nonwoven fabric such as the necking and heat treatment to cure the nonwoven fabric is omitted, and the elasticity of the nonwoven fabric is inherent and elasticity and shrinkage elasticity of the elastic sheet are excellent. It is required to develop an elastic composite nonwoven fabric which can be applied to sanitary articles such as medical bands.

(0001) Korea Patent No. 10-1214290 (Registered on December 13, 2012) (0002) Korea Patent No. 10 = 1348796 (Registered on December 31, 2013)

The main object of the present invention is to solve the problems of the prior art of the present invention, and it is a main object of the present invention to provide a nonwoven fabric which has a unique flexibility of the nonwoven fabric, Elasticity and shrinkage elasticity, and is environmentally friendly, so that the elastic composite nonwoven fabric can be applied to sanitary articles such as cosmetic packs and medical bands, and a manufacturing apparatus therefor.

Another object of the present invention is to provide an elastic composite nonwoven fabric in which the nonwoven fabric is water-bonded to one side or both sides of the elastic sheet, and the binding between the elastic sheet and the nonwoven fabric is strengthened, and a manufacturing apparatus therefor.

The present invention also provides an elastic composite nonwoven fabric in which the binding between the elastic sheet and the nonwoven fabric is reinforced without a complicated process and a manufacturing apparatus therefor.

As a means for achieving this object of the present invention, the elastic composite nonwoven fabric according to the present invention comprises:
A synthetic resin having a first surface and a second surface and formed of a woven or nonwoven fabric made of any one selected from the group consisting of polyurethane and TPU or a mixture thereof or a plurality of through holes having a predetermined elasticity, silicone or rubber sheet, An elastic sheet having a strength of 0.5 to 2 kgf / 5 cm and a residual stress on a stress-strain curve of 120% or more at 150% elongation in the longitudinal and transverse directions;
The first surface or the first surface and the second surface may be bonded to each other and may be formed of viscose rayon, cotton, silk, polyester, nylon, acrylic, polypropylene, PLA (Poly Lactic Acid), polyurethane, TPU (Thermoplastic Poly Urethane) A nonwoven fabric made of short fibers of any one selected from among PP / PE release yarns or mixtures thereof,

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The nonwoven fabric is characterized in that short fibers of the web penetrate through the voids of the elastic sheet by spraying water at a high pressure on an upper part of the web laminated to a predetermined thickness on the upper surface of the elastic sheet.

The apparatus for producing the elastic composite nonwoven fabric comprises:
An elastic sheet feeding means composed of a feeding roll for feeding the elastic sheet, a conveying means for feeding and conveying the lower end of the elastic sheet, and a winding roll for winding the elastic sheet, and feeding the elastic sheet;
A curved surface having a predetermined curvature is formed at the center of the conveyor means to support the lower surface of the elastic sheet and to bend upward in order to apply tensile force in the longitudinal direction or the transverse direction to the elastic sheet moving by the elastic sheet feeding means An elastic sheet tensioning means including a curved plate;
A web feeding means composed of a carding machine for laminating short fibers of the nonwoven fabric in a web state to a predetermined thickness on the upper surface of the elastic sheet,
A water jetting unit including a water jetting body having a plurality of jetting nozzles formed at regular intervals so as to jet high-pressure water onto a web laminated on an upper surface of the elastic sheet;
And drying means for drying the elastic composite nonwoven fabric of the elastic sheet and the nonwoven fabric,
Wherein a curved surface having a curvature that is curved upward in an upward direction corresponding to a curved surface formed on the upper surface of the curved surface plate is formed on the lower surface of the water jetting main body of the water jetting means, And is installed in a direction orthogonal to the tangential line of the curved surface formed on the upper surface of the plate.

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The elastic composite nonwoven fabric according to the present invention is excellent in elasticity and adhesiveness due to the elasticity of the elastic sheet while having the inherent flexibility of the nonwoven fabric since the nonwoven fabric is stretched and heat treated to eliminate the complex process of curing the nonwoven fabric, It is environmentally friendly and can be applied to sanitary articles such as cosmetic packs and medical bands.

The present invention relates to a nonwoven fabric comprising a nonwoven fabric and a nonwoven fabric, wherein the nonwoven fabric is water-bonded to one surface or both surfaces of the elastic sheet, There is an effect that the binding force can be increased.

1 is a cross-sectional view showing an embodiment of an elastic composite nonwoven fabric according to the present invention,
2 is a cross-sectional view showing another embodiment of the elastic composite nonwoven fabric according to the present invention,
3 is a view showing an embodiment of an apparatus for manufacturing the two-layer elastic composite nonwoven fabric shown in Fig. 1. Fig.
4 is a view showing an embodiment of an apparatus for manufacturing the three-layered elastic composite nonwoven fabric shown in FIG. 2. FIG.
5 is a view showing another embodiment of an apparatus for producing an elastic composite nonwoven fabric according to the present invention.
Fig. 6 is an enlarged view showing the elastic sheet tensioning means shown in Fig. 5,
7 is an enlarged view showing an elastic sheet with a tensile force according to the present invention,
8 is a view showing an example of an apparatus for manufacturing a spunlaced nonwoven fabric according to the prior art
9 is an explanatory view showing a manufacturing process of an elastic nonwoven fabric composite made of a necking nonwoven fabric according to the prior art.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an elastic composite nonwoven fabric and an apparatus for producing the same according to the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are cross-sectional views showing an elastic composite nonwoven fabric according to the present invention.

As shown in the drawings, the elastic composite nonwoven fabric 1 of the present invention is formed by bonding a nonwoven fabric 3 to one or both surfaces of an elastic sheet 2.

That is, the first embodiment of the present invention is formed by coupling the first nonwoven fabric 3a to the first surface 4 of the elastic sheet 2 having the first surface 4 and the second surface 5 .

The second embodiment of the present invention is formed by bonding the nonwoven fabric 3a and the nonwoven fabric 3b to the first surface 4 and the second surface 5 of the elastic sheet 2, respectively.

The elastic sheet 2 is made of a woven fabric, a nonwoven fabric, or a rubber sheet. The woven fabric is made up of weft 2a and warp 2b. In the case of woven fabric, voids 2c having a certain size are formed between the weft yarn 2a and the warp yarns 2b, and in the case of the nonwoven fabric 3, voids are formed between the short fibers. In the rubber sheet, the silicone or the synthetic resin sheet, through-holes of a predetermined size are perforated in a predetermined pattern.

The elastic sheet (2) has a cover factor of 80 to 90%. Here, the cover factor refers to the ratio of the area of warp and weft covering the unit area of the fabric as the covering ratio of the fabric. Therefore, when the cover factor is 80 to 90%, it means that the porosity per unit area is 10 to 20%. That is, the area ratio occupied by voids and through holes per unit area of the elastic sheet 2 is 10 to 20%.

The elastic sheet 2 is formed by weaving short fibers or long fibers made of any one selected from polyurethane and TPU (Thermoplastic Polyurethane) or a mixture thereof. The elastic sheet 2 may be made of any one selected from viscose rayon, cotton, polyester, nylon, acrylic, polypropylene, PLA (Poly Lactic Acid), polyurethane and TPU And is made of short fibers or nonwoven fabrics of long fibers.

The elastic sheet 2 may be made of rubber, silicone, or a synthetic resin sheet. The rubber sheet or the like is formed with through holes at regular intervals so that the short fibers of the nonwoven web can enter and bind.

 Further, the elastic sheet 2 is required to have elongation, elasticity, flexibility, air permeability, rigidity and the like. Preferably, the elastic sheet 2 has a elongation of 110 to 140% or more in the longitudinal direction MD of the elastic sheet and the transverse direction CD of the elastic sheet. Further, the elastic sheet 2 has a strength of 0.5 to 2 kgf / 5 cm or more in the state of being increased by about 150%. The elastic sheet (2) has a residual stress on a stress-strain curve of 120% or more.

The nonwoven fabrics 3a and 3b may be formed of any one of viscose rayon, cotton, silk, polyester, nylon, acrylic, polypropylene, PLA (Poly Lactic Acid), polyurethane, thermoplastic polyurethane (TPU) And a staple fiber of a selected one or a mixture thereof.

The nonwoven fabric 3 is supplied in a web state. The web loosens the bundled staple fibers so that they become cotton. The staple fibers may be formed by extruding a molten thermoplastic material from a plurality of fine, generally circular capillaries of the spinnerette. For example, the nonwoven fabric 3 may be made of a web prepared by carding 70 to 80% by weight of viscose rayon short fibers and 20 to 30% by weight of polyester short fibers. In this case, the short fibers are preferably 2 to 15 mm in length so that they can be bound to each other physically in the water injection process.

The elastic composite nonwoven fabric (10) of the present invention is applied with a spun lace which combines the elastic sheet (2) with the nonwoven fabric (3) by spraying high pressure water. A spunlace sprays a high-pressure water stream on a web laid on the upper surface of the elastic sheet 2 so that the staple fibers constituting the web are bound to the elastic sheet 2. [ These spun laces are very eco-friendly because they are capable of continuous production, are inexpensive to manufacture, and do not use adhesives.

Hereinafter, an apparatus for producing an elastic composite nonwoven fabric of the present invention will be described.

FIG. 3 shows an example of a manufacturing apparatus for manufacturing the elastic composite nonwoven fabric according to the first embodiment of the present invention. The elastic composite nonwoven fabric manufacturing apparatus 10 according to the present invention comprises elastic sheet feeding means 20, web feeding means 30 and water injecting means 40 as shown in FIG.

The elastic sheet feeding means 20 is for continuously feeding the elastic sheet 2 and comprises a feeding roll 21 and a winding roll 22. Therefore, the feed roll 21 continuously feeds the elastic sheet 2 in the roll state, and the take-up roll 22 winds the elastic composite nonwoven fabric 1.

A conveyor means (25) for supporting the lower surface of the elastic sheet (2) is provided between the supply roll (21) and the winding roll (22). The conveyor means 25 consists of two rotating rolls 27 and a conveyor belt 26 of an endless track. Therefore, the conveyor means 25 feeds the elastic sheet 2 in the horizontal direction while preventing the elastic sheet 2 from sagging downward.

The web supplying means 30 is a carding machine 31 for supplying a nonwoven web 33 to the upper surface of the elastic sheet 2. [ The carding machine 31 unwinds the short fibers of the bundled nonwoven fabric to form a cotton-like shape. Since the carding machine 31 is widely known in the art, a detailed description thereof will be omitted. The carder 31 is provided on the conveyor belt 26 and supplies the web with a predetermined thickness to the upper surface of the elastic sheet 2 moved along the conveyor belt 26.

The water spraying means 40 is for spraying a high pressure water onto a web laminated on the upper surface of the elastic sheet 2 to a predetermined thickness. To this end, the water injection means 40 includes a water injection body 41 installed on the conveyor belt 26 and continuously supplying a predetermined amount of water. The water jetting main body 41 is formed in the form of a box or a square pipe having an internal space of a predetermined size, and a plurality of jetting nozzles 42 for jetting high-pressure water are formed at a predetermined interval therebetween. Therefore, when high-pressure water is injected into the web 33, short fibers constituting the web are inserted into the voids of the elastic sheet 2, for example, the warp yarns 2a and the voids 2c of the weft yarn 2b And are engaged with the elastic sheet (2).

FIG. 4 shows an example of a manufacturing apparatus for manufacturing the elastic composite nonwoven fabric according to the second embodiment of the present invention. The elastic composite nonwoven fabric manufacturing apparatus 10 according to the present invention comprises elastic sheet feeding means 20, two web feeding means 30 and two water injecting means 40.

The elastic sheet feeding means 20 comprises a feed roll 21 and a take-up roll 22 arranged vertically and a guide roll 23 disposed therebetween. Therefore, the elastic sheet 2 is supplied in a "C" shape. A first conveyor means 25a for supporting the lower surface of the upper elastic sheet 2 is provided between the supply roll 21 and the guide roll 23 and the guide roll 23 and the take- A second conveyor means 25a for supporting a lower surface of the lower elastic sheet 2 is provided.

The first web supplying means 30a is composed of a carding machine 31 for supplying a nonwoven web 33 to the upper surface of the upper elastic sheet 2, 30b are composed of a carding machine 31 for supplying a nonwoven web 33 to the upper surface of the lower elastic sheet 2. [

The first water injecting means 40a injects high-pressure water to the nonwoven web 33 provided on the downstream side of the first web supplying means 30a and stacked on the upper surface of the upper elastic sheet 2 And the second water jetting means 40b are arranged downstream of the second web supplying means 30b to spray high pressure water onto the nonwoven web 33 laminated on the upper surface of the upper elastic sheet 2 .

5 shows another embodiment of the manufacturing apparatus for producing the elastic composite nonwoven fabric of the first embodiment of the present invention. The elastic composite nonwoven fabric manufacturing apparatus 10 according to the present invention includes the elastic sheet feeding means 20, the web feeding means 30 and the water injecting means 40, as well as the elastic sheet 2, The elastic sheet tensioning means 50 is further provided for applying a predetermined tension force to the elastic sheet tensioning means 50. The elastic sheet tensioning means 50 will be described below.

The elastic sheet tensioning means 50 serves to stretch the elastic sheet 2 conveyed in the horizontal direction by the elastic sheet feeding means 20 in the longitudinal direction MD and the lateral direction CD. And a curved surface plate 51 installed between the two conveyor means 25 of the elastic sheet tension means 50 and supporting the lower surface of the elastic sheet 2. [ The curved surface plate 51 preferably has a curved surface having a curvature R which is constant in the longitudinal direction MD of the elastic sheet 2 and the transverse direction CD of the elastic sheet 2, It is stretched in the horizontal direction.

6, the gap 2c between the warp yarns 2a forming the elastic sheet 2 and the weft yarn 2b is set to be larger than the warp yarns 2b, . When the voids 2c of the elastic sheet 2 become large, staple fibers of the web can smoothly enter the voids 2c of the elastic sheet 2 in the spun lace process.

When the elastic sheet 2 passes completely through the curved plate 51 of the elastic sheet tensioning means 50, the elastic sheet 2 shrinks to its original state. That is, the gap 2c of the elastic sheet 2 is reduced. Accordingly, the short fibers passing through the gap 2c of the elastic sheet 2 are fixed, so that the binding between the elastic sheet 2 and the nonwoven fabric 3 is strengthened.

The curved surface of curvature R 'corresponding to the curved surface formed on the curved surface plate 51 is formed on the lower surface of the water jetting main body 41 corresponding to the upper portion of the elastic sheet tensioning means 50. The injection nozzle 42 formed at the bottom of the water injection body 41 is installed in a direction orthogonal to the tangential line of the curved surface formed on the curved plate 51. The direction of the water jetted from the jetting nozzle 42 and the position of the gap 2c of the elastic sheet 2 adhered to the curved plate 51 are integrated so that the staple fibers of the web 33 smoothly So that it can enter the cavity 2c.

Hereinafter, a method for producing the elastic composite nonwoven fabric according to the present invention will be described. First, the method for producing an elastic composite nonwoven fabric of the present invention comprises a step of supplying an elastic sheet, a step of supplying a web, a step of tensioning an elastic sheet, a step of spun lacing, a step of drying, and a step of winding an elastic composite nonwoven fabric.

In the elastic sheet feeding step, the elastic sheet 2 in a roll state is fed to the feed roll 21 and the winding roll 22 and supplied. Then, the elastic sheet 2 is moved in the horizontal direction along the conveyor means 25. [

In the web supplying step, the short fibers of the nonwoven fabric are made into a web state by using the carder 51 and laminated on the upper surface of the elastic sheet 2 moving along the conveyor means 25 to a constant thickness.

In the elastic sheet tensioning step, the elastic sheet 2 moving along the conveyor means 25 is installed in the center of the conveyor means 25 and passes through the curved plate 51, The elastic sheet 2 is stretched in the longitudinal direction MD or the lateral direction CD by a curved surface having a constant curvature formed on the upper surface.

Then, the spunlaced step is a step of spraying high-pressure water onto the upper surface of the elastic sheet 2 having the void 2c expanded by the elastic sheet tensioning step so that the short fibers of the web 33 laminated thereon are pressed against the elastic sheet 2 through the expanded gap 2c. Then, when the elastic sheet 2 passes the curved plate 51, the enlarged cavity 2c of the elastic sheet 2 is contracted again, and the elastic sheet 2 is folded back by the short fibers inserted into the gap 2c 2) are tightly bound together.

Finally, in the spun lace step, the elastic composite nonwoven fabric 1 wetted with water is dried while passing through a dryer (not shown), and then wound on the winding roll 22.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

1: elastic composite nonwoven fabric 2: elastic sheet
3: nonwoven fabric 10: elastic nonwoven fabric manufacturing device
20: Elastic sheet feeding means 21: Feed roll
22: Winding roll 23: Guide roll
25: conveyor means 26: conveyor belt
27: rotating roll 30: web feeding means
31: Carding machine 33: Web
40: water injection means 41: water injection body
42: injection nozzle 50: elastic sheet tension means
51:

Claims (10)

delete delete delete delete delete delete A synthetic resin having a first surface and a second surface and formed of a woven or nonwoven fabric made of any one selected from the group consisting of polyurethane and TPU or a mixture thereof or a plurality of through holes having a predetermined elasticity, silicone or rubber sheet, An elastic sheet having a strength of 0.5 to 2 kgf / 5 cm and a residual stress on a stress-strain curve of 120% or more at 150% elongation in the longitudinal and transverse directions; The first surface or the first surface and the second surface may be bonded to each other and may be formed of viscose rayon, cotton, silk, polyester, nylon, acrylic, polypropylene, PLA (Poly Lactic Acid), polyurethane, TPU (Thermoplastic Poly Urethane) And a nonwoven fabric made of short fibers of any one selected from the group consisting of PP / PE release yarns or mixtures thereof, the apparatus comprising:
An elastic sheet feeding means composed of a feeding roll for feeding the elastic sheet, a conveying means for feeding and conveying the lower end of the elastic sheet, and a winding roll for winding the elastic sheet, and feeding the elastic sheet;
A curved surface having a predetermined curvature is formed at the center of the conveyor means to support the lower surface of the elastic sheet and to bend upward in order to apply tensile force in the longitudinal direction or the transverse direction to the elastic sheet moving by the elastic sheet feeding means An elastic sheet tensioning means including a curved plate;
A web feeding means composed of a carding machine for laminating short fibers of the nonwoven fabric in a web state to a predetermined thickness on the upper surface of the elastic sheet,
A water jetting unit including a water jetting body having a plurality of jetting nozzles formed at regular intervals so as to jet high-pressure water onto a web laminated on an upper surface of the elastic sheet;
And drying means for drying the elastic composite nonwoven fabric of the elastic sheet and the nonwoven fabric,
Wherein a curved surface having a curvature that is curved upward in an upward direction corresponding to a curved surface formed on the upper surface of the curved surface plate is formed on the lower surface of the water jetting main body of the water jetting means, Wherein the elastic composite nonwoven fabric is provided in a direction orthogonal to a tangential line of a curved surface formed on an upper surface of the plate. delete delete delete
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