WO2016144081A1

WO2016144081A1 - Functional non-woven fabric

Info

Publication number: WO2016144081A1
Application number: PCT/KR2016/002290
Authority: WO
Inventors: 장지상; 이재정; 최경석
Original assignee: (주)아셈스
Priority date: 2015-03-12
Filing date: 2016-03-08
Publication date: 2016-09-15
Also published as: KR101540775B1

Abstract

The present invention relates to a functional non-woven fabric, and more specifically, to a functional non-woven fabric manufactured by bonding a web layer, made from a short fiber such as nylon or polyester, on a scrim by a needle punching, spunlacing or spunbonding method, the fabric being characterized by having various functionalities by using, as the scrim, an adhesive fabric in which adhesiveness has been given to the fabric itself.

Description

Functional Nonwoven Fabric

The present invention, unlike the conventional techniques that simply add a coating layer or reinforcing means on the surface of the nonwoven fabric to impart functionality, by providing a scrim (scrim) itself used in the manufacture of nonwoven fabric with an adhesive fabric to impart a variety of functionality It relates to a functional nonwoven fabric.

In general, non-woven fabric is a kind of fabric in which various fiber materials such as natural, chemical, and glass are entangled without a certain direction to each other to form a web in a sheet form, and then bonded and stabilized by a chemical or physical method. .

Such a nonwoven fabric is usually laminated by a needle punching after laminating a web layer made of short fibers such as nylon or polyester on a scrim woven from a fiber such as fiber or glass, or spraying high pressure water. It is produced by the spunbond method to bind by using a spunlaced method that is entangled with each other or to irregularly radiate the material forming the web layer itself.

However, the conventional nonwoven fabric as described above has many limitations in its use range, such as being used only in various wicks, reinforcement cloths, filter cloths, etc., as there is no special function.

In order to solve this problem, Korean Patent Laid-Open Publication No. 10-2013-0127565 "Non-woven fabric having heat fusion property and a non-sealed polyurethane artificial leather using the same" by forming a polyurethane film coating layer on the surface of the non-woven fabric, We tried to expand the range of use by giving functionality such as fusion and molding and ease of pattern formation.

In addition, the Republic of Korea Patent Publication No. 10-0490249 "Composite nonwoven fabric for artificial leather and artificial leather using the same" by further laminate the reinforcement made of polyamide fibers on the non-woven fabric, to improve the stability and texture, etc. for the nonwoven fabric Now.

However, the nonwoven fabrics according to the general nonwoven fabric or the prior art as described above simply add a coating layer or reinforcing means to the surface of the nonwoven fabric to impart functionality, and the functions thereof are inadequate and have the following problems.

First, the conventional nonwoven fabrics as described above are difficult to form a variety of patterns, especially three-dimensional patterns, and even if some of the three-dimensional pattern is formed, not only the volume is significantly reduced, but also to form a complex process must be accompanied to form There were very few problems with gender, productivity and usability.

In addition, in the case of the nonwoven fabric according to the general nonwoven fabric or the Republic of Korea Patent Publication No. 10-0490249 "artificial nonwoven fabric for artificial leather and artificial leather using the same", the fluff is easily generated, and furthermore, the web layer is easily detached or peeled off. Not only is this markedly lowered, there was a problem of very poor wear resistance.

In addition, the conventional nonwoven fabrics as described above have a problem that is simple and not beautiful in appearance, such as a lot of restrictions to implement a variety of colors or patterns.

The present invention is to solve the above-described problems, by making a scrim used in the manufacture of nonwoven fabric with an adhesive fabric, to make it possible to impart a variety of functionality.

Specifically, the functional nonwoven fabric according to the present invention can be molded in various patterns by surface molding, and in particular, it is possible to improve the formability, such as improving the volume feeling when forming a three-dimensional pattern, as well as in forming as described above. This simplifies the process and improves productivity and usability, including lowering production costs.

In addition, by using an adhesive fabric having an adhesive on the fabric itself as described above, not only the adhesiveness can be expressed on the nonwoven fabric by heat treatment, but also no fluff occurs, and the web layer is not separated or peeled off. Its durability is improved, and when the adhesive fabric is woven, hot-melt coated yarn or TPU (Thermoplastic Polyurethane) yarn is included, so that the wear resistance of the nonwoven fabric can be improved.

In addition, not only various patterns or colors may be given to the nonwoven fabric according to the pattern or color of the woven adhesive fabric, but also the appearance or color of the adhesive fabric may appear on the surface of the nonwoven fabric to improve the appearance and beauty. And breathability is also excellent.

The present invention is a nonwoven fabric manufactured by binding a web layer (10) made of short fibers to a scrim, wherein the scrim is made of an adhesive fabric 20, the functional nonwoven fabric is a task As a solution of

Here, the adhesive fabric 20 may be made of a yarn 21 coated with a hot melt resin is woven in a knitting, tricot or circular knitting method.

In addition, the adhesive fabric 20, the hot melt resin coated yarn 21 and TPU (Thermoplastic Polyurethane) yarn 22 may be made by weaving in a knitting, tricot or circular knitting method.

In addition, the adhesive fabric 20 may be made of a hot melt resin coated yarn 21 and a fiber yarn 23 are woven in a knitting, tricot or circular knitting method.

In addition, the adhesive fabric 20, the surface layer (L1), the back layer (L2) and the intermediate layer (L3) connecting the surface layer (L1) and the back layer (L2) is made of a woven in a double raschel method. The surface layer (L1) is made of hot melt resin coated yarn 21 or TPU yarn 22, and the back layer (L2) is made of hot melt resin coated yarn 21 or TPU yarn 22 The intermediate layer (L3) may be made of a fiber yarn (23).

At this time, the hot melt resin coated yarn 21 used in each of the adhesive fabrics 20 is a hot melt resin 21d on the outer surface of the fiber yarn 21c composed of the core 21a and the seed 21b. ) Is coated in an amount of 0.03 to 0.5 g / m, wherein the fiber yarn 21c is used alone or in combination of two or more of polyester yarn, nylon yarn or cotton yarn, and the hot melt resin 21d is poly It is preferable to use individually or in combination of 2 or more types from ester resin, a polyurethane resin, an acrylic resin, a polyamide resin, ethylene vinyl acetate resin, or a polyolefin resin.

Meanwhile, in the nonwoven fabric manufactured by binding the web layer 10 made of short fibers to a scrim made of the adhesive fabric 20 as described above, a pressure, heat treatment, and cooling process after the web layer 10 is bound. The lint does not occur in the nonwoven fabric through, but specifically, by heat treatment at a pressure of 0.5 ~ 10kg / cm ² at 60 ~ 180 ℃, the hot melt resin contained in the adhesive fabric 20 is melted, thereby the web layer The molten hot melt resin may penetrate between the pores of the adhesive fabric 20 supporting the 10 to prevent fluff from occurring in the nonwoven fabric.

The present invention is capable of molding a variety of patterns by surface molding, and in particular, it is possible to improve the formability, such as improving the volume feeling when forming a three-dimensional pattern, as well as simplifying the process in forming as described above, thereby producing In order to improve the productivity and utility, such as reducing the cost, and also to express the adhesiveness to the nonwoven fabric by heat treatment, as using the adhesive fabric having an adhesive to the fabric itself as a scrim as described above In addition, the durability is improved, such as no fluff, no peeling and peeling of the web layer, and non-woven fabrics as the hot melt coated yarn or TPU (Thermoplastic Polyurethane) yarn is included during the weaving of the adhesive fabric. Abrasion resistance of the fabric can be improved, and the pattern or color of the woven adhesive fabric According to the present invention, not only various patterns or colors may be given to the nonwoven fabric, but also the appearance or color of the adhesive fabric may appear on the surface of the nonwoven fabric, thereby improving the beauty of appearance and providing excellent breathability. have.

1 is a real photograph of a functional nonwoven fabric according to an embodiment of the present invention

2 is a real picture of a functional nonwoven fabric according to another embodiment of the present invention

Figure 3 is a real picture of the functional nonwoven fabric according to another embodiment of the present invention

4 is a view showing the knitting structure of the adhesive fabric according to the present invention

5 is a view showing a tricot weave structure of the adhesive fabric according to the present invention

Figure 6 is a view showing the circular knitting structure of the adhesive fabric according to the present invention

7 is a view showing a double-lasel weaving structure of the adhesive fabric according to the present invention

Figure 8 is a view showing the structure of the hot-melt coated yarn used in the adhesive fabric according to the present invention

The present invention for achieving the above effect relates to a functional nonwoven fabric, the configuration and operation easily understood by those skilled in the art in each figure and detailed description and elements not directly related to the technical features of the present invention. Detailed description and illustration of the specific technical configuration and operation of the brief or omitted.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a real picture of the functional nonwoven fabric according to an embodiment of the present invention, Figure 2 is a real picture of the functional nonwoven fabric according to another embodiment of the present invention, Figure 3 according to another embodiment of the present invention 4 is a real picture of the functional nonwoven fabric, Figure 4 is a view showing the knitting structure of the adhesive fabric according to the present invention, Figure 5 is a view showing the tricot weave structure of the adhesive fabric according to the present invention, Figure 6 Figure is a view showing the circular knitting fabric of the adhesive fabric according to the invention, Figure 7 is a view showing the double-lasel weaving structure of the adhesive fabric according to the invention, Figure 8 is a hot melt used in the adhesive fabric according to the present invention The figure shows the structure of the coated yarn.

1 to 3, in the nonwoven fabric manufactured by binding the web layer 10 made of short fibers to the scrim, the scrim is characterized in that the adhesive fabric (20).

Here, FIG. 1 illustrates an adhesive fabric 20 woven by using a yarn 21 coated with a hot melt resin as an embodiment, and FIG. 2 illustrates a yarn 21 coated with a hot melt resin in another embodiment. The adhesive fabric 20 is woven using a TPU yarn 22, Figure 3 is an adhesive woven using a yarn 21 and a fiber yarn 23 coated with a hot melt resin in another embodiment By using the fabric 20, the specific weaving method or weaving embodiment using the respective yarns are as follows.

Specifically, as shown in FIG. 4 (a), the adhesive fabric 20 is knitted or knitted in such a manner that the yarn 21 coated with a hot melt resin has a through hole. As shown, the hot melt resin coated yarn 21 is woven to have a through-hole in a tricoat manner, or as shown in FIG. 4 (b), the hot melt resin coated yarn 21 and the TPU Knitting the yarn 22 to have a through hole or as shown in (b), (b) 'of FIG. 5, the hot melt resin coated yarn 21 and the TPU yarn 22 provide a through hole in a tricoat manner. Weaved to have, or as shown in (c) of Figure 4, knitted or coated with a hot melt resin yarn 21 and fiber yarn 23 to have a through-hole or (c), (c) of Figure 5 As shown in the figure, the hot melt resin coated yarn 21 and the fiber yarn 23 may be woven to have a through-hole in a tricoat manner.

Alternatively, the adhesive fabric 20 is made by weaving a hot-melt resin coated yarn 21 and a TPU yarn 22 into circular pieces as shown in FIG. 6 (a) or FIG. 6 (b). As shown in the hot-melt resin coated yarn 21 and the fiber yarn 23 can be made by weaving the circular knitting, or not shown in the figure using only the hot-melt resin coated yarn 21 weaving into circular knitting It can also be done.

In addition, the adhesive fabric 20 is made of a surface layer (L1), the back layer (L2) and the woven in a double-lasel method consisting of the intermediate layer (L3) connecting the surface layer (L1) and the back layer (L2), As shown in (a) of FIG. 7, the surface layer L1 is formed of a TPU yarn 22, the back layer L2 is made of a yarn 21 coated with a hot melt resin, and the intermediate layer L3. ) May be made of a fiber yarn 23, the front layer (L1) and the back layer (L2) is made of a yarn 21 coated with a hot melt resin, as shown in Figure 7 (b), the intermediate layer (L3) may be made of a fiber yarn 23, the surface layer (L1) is made of a yarn 21 coated with a hot melt resin, as shown in Figure 7 (c), the back layer (L2) Is made of TPU yarn 22, the intermediate layer (L3) may be made of fiber yarn (23).

At this time, the knitting is a conventional weaving method in which the yarns are woven with each other in a normal weft or inclined direction as shown in FIG. 4, and a detailed description thereof will be omitted.

On the other hand, the tricot (tricot) method is a knitted fabric made by a knitting process, and corresponds to a warp knitting in which the tissue is formed in the radial direction, ie, in the longitudinal direction, among the knitting. It is a weaving method, and a variety of tricoat methods can be applied as a known method, but in the present invention, a chain-type tricoat weaving method for forming a through hole is applied. That is, as shown in Figure 5 (a), (a) ', the hot melt coated yarn 21 is woven in a chain-shaped tricot weaving method or in Figures 5 (b), (b)' As shown, by using a tricot weaving method in which a hot melt coated yarn 21 is added to a chain structure made of TPU yarns 22, or shown in FIGS. 5 (c) and 5 (c) '. As described above, it is possible to use a tricot weaving method in which hot melt coated yarns 21 are added to a chain-like structure composed of fiber yarns 23. However, the present invention is not limited thereto, and various tricot weaving methods may be applied in addition to the chain structure as described above.

In addition, circular knitting refers to a plurality of layers (multiple layers) in a single fabric by knitting a needle into an annular layer and manufacturing knitting in the form of weft knitting. ) Is a method of weaving such that it is formed, which is also a known method.

In addition, a double raschel knitted fabric is made by the knitting process as described above, and among the knitting, warp knitting in which the tissue is formed in the radial direction, that is, the longitudinal direction. As a weaving method corresponding to the present invention, an already known weaving method which is woven by a conventional double raschel warp knitting machine.

Therefore, the technique of weaving to form a through-hole using the knitting or tricot or circular knitting or double-lasel method is already known in a variety of weaving forms, methods and apparatuses, moreover, the weaving method is the size of the through-hole to be implemented Or because it is very variable according to the field of use and design, etc. without particular limitation on the weaving form, method and apparatus, etc., all known weaving forms, methods and apparatus can be applied.

On the other hand, the hot-melt resin coated yarn 21 used in the adhesive fabric 20 made as described above is to impart adhesion to the adhesive fabric 20, as shown in Figure 8, the core ( The hot melt resin 21d is coated on the outer surface of the fiber yarn 21c composed of 21a) and the seed 21b in an amount of 0.03 to 0.5 g / m, and when less than 0.03 g / m, the adhesiveness becomes insufficient. There exists a possibility that when it exceeds 0.5g / m, there exists a possibility that defect may arise at the time of weaving because the quantity of the hot melt resin 21d is large, and there exists a possibility that a hot melt resin may generate the contamination of a fabric. On the other hand, in the case of the coating amount may vary beyond the above range depending on the type of product or environment used.

In this case, the fiber yarn 21c included in the yarn 21 coated with the hot melt resin may be used alone or in combination of two or more of polyester yarn, nylon yarn or cotton yarn, and the hot melt resin 21d may be used. It can be used individually or in combination of 2 or more types from polyester resin, a polyurethane resin, an acrylic resin, a polyamide resin, ethylene vinyl acetate resin, or a polyolefin resin.

Here, the hot melt resin 21d may be coated regardless of the type of the fiber yarn 21c, but considering the compatibility of the fiber yarn 21c and the hot melt resin 21d through the coating, In the case, it is preferable to coat a polyester resin or a polyurethane resin, in case of nylon yarn, to coat an acrylic resin or polyamide resin, and in case of cotton yarn, to coat ethylene vinyl acetate resin or polyolefin resin.

On the other hand, the TPU yarn 22 refers to a yarn manufactured by extruding a TPU (Thermoplastic Polyurethane) resin, which is a kind of already known yarn and its detailed description is omitted.

The fiber yarn 23 blended together with the hot melt resin coated yarn 21 may be used alone or in combination of two or more of polyester yarn, nylon yarn or cotton yarn.

In addition, in the case of the hot-melt resin coated yarn 21, TPU yarn 22, and fiber yarn 23 used in each of the above embodiments is not limited to the above embodiments and may be used alone or in combination with various embodiments. In addition, various yarns or functional yarns may be used in combination or blended.

Therefore, the present invention in the nonwoven fabric manufactured by binding the web layer 10 made of short fibers to the scrim, as the scrim is made of the adhesive fabric 20 made as described above, the molding of various patterns by surface molding or the like It is possible to improve the formability, such as improving the volume feeling when forming a three-dimensional pattern, and in addition to the productivity and utility, such as simplifying the process in forming as described above, thereby reducing the production cost. In addition, by using the adhesive fabric 20 having the adhesiveness on the fabric itself as described above as a scrim, not only the adhesiveness can be expressed on the nonwoven fabric by heat treatment, but also the web layer 10. Its durability is improved, such as no peeling off and peeling off, and when weaving the adhesive fabric, the yarn 21 coated with hot melt or As the TPU yarn 22 is included, the wear resistance of the nonwoven fabric may be improved, and in addition, various patterns or colors may be given to the nonwoven fabric according to the pattern or color of the woven adhesive fabric 20. In addition, as the pattern or color of the adhesive fabric 20 appears on the surface of the nonwoven fabric, it is possible to improve the appearance beauty.

In particular, in the nonwoven fabric manufactured by binding the web layer 10 made of short fibers to the scrim made of the adhesive fabric 20 as described above, the pressure, heat treatment and cooling process after the binding of the web layer 10 is performed. Lint does not occur in the nonwoven fabric through, specifically, by heat treatment at a pressure of 0.5 ~ 10kg / cm ² at 60 ~ 180 ℃, the hot melt resin contained in the adhesive fabric 20 is melted, thereby the web layer The molten hot melt resin may penetrate between the pores of the adhesive fabric 20 supporting the (10) to prevent fluff from occurring in the nonwoven fabric.

However, the molding conditions are not limited to the above range, and various temperatures and pressures may be applied depending on the type of the web layer 10 or the use purpose of the nonwoven fabric.

On the other hand, the adhesive fabric described above in the present invention is "decorative fabric having adhesiveness" according to the Republic of Korea Patent Publication No. 10-1250409, registered and filed by the applicant of the present invention, according to "10-1240490" Fabric with adhesive "," Adhesive fabric with a dead end part "according to No. 10-1439181," Method for forming three-dimensional pattern using adhesive fabric "according to No. 10-1396828, Korean Patent Application No. 10-2014- "Three-dimensional pattern forming method using adhesive fabric" according to 0051794, "Adhesive fabric woven with annular pieces and three-dimensional pattern forming method using the same" according to No. 10-2014-0051799, No. 10-2014-0115557 According to "the fabric fabrication method using the adhesive fabric and the fabric fabricated by this fabrication method" and "functional fabric consisting of a double laselle knitted fabric" according to No. 10-2015-0002657, and the like are limited thereto. And the same structure as above It can be applied to a variety of adhesive fabric in a range with performance.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the invention described in the claims below. It will be appreciated.

The present invention is a nonwoven fabric manufactured by binding a web layer (10) made of short fibers to a scrim (scrim), the invention is a functional nonwoven fabric, characterized in that the scrim is made of an adhesive fabric (20) Shall be in the form for implementation.

The present invention is capable of molding a variety of patterns by surface molding, and in particular, it is possible to improve the formability, such as improving the volume feeling when forming a three-dimensional pattern, as well as simplifying the process in forming as described above, thereby producing In order to improve the productivity and utility, such as reducing the cost, and also to express the adhesiveness to the nonwoven fabric by heat treatment, as using the adhesive fabric having an adhesive to the fabric itself as a scrim as described above In addition, the durability is improved, such as no fluff, no peeling and peeling of the web layer, and non-woven fabrics as the hot melt coated yarn or TPU (Thermoplastic Polyurethane) yarn is included during the weaving of the adhesive fabric. Abrasion resistance of the fabric can be improved, and the pattern or color of the woven adhesive fabric According to the present invention, not only various patterns or colors may be given to the nonwoven fabric, but also the appearance or color of the adhesive fabric may appear on the surface of the nonwoven fabric, thereby improving the beauty of appearance and providing excellent breathability. Therefore, it is expected to be widely used in industry.

Claims

In the non-woven fabric produced by binding a web layer (10) consisting of short fibers to a scrim,

The nonwoven fabric, characterized in that the scrim is made of an adhesive fabric (20).
The method of claim 1,

The adhesive fabric 20,

A functional nonwoven fabric, characterized in that the yarn (21) coated with hot melt resin is woven in a knitting, tricot or circular knitting method.
The method of claim 1,

The adhesive fabric 20,

A functional nonwoven fabric, characterized in that the hot melt resin coated yarn 21 and TPU (Thermoplastic Polyurethane) yarn 22 are woven in a knitting, tricot or circular knitting manner.
The method of claim 1,

The adhesive fabric 20,

A functional nonwoven fabric, characterized in that the hot melt resin coated yarn 21 and the fiber yarn 23 is woven in a knitting, tricoat or circular knitting method.
The method of claim 1,

The adhesive fabric 20,

Woven in a double-lasel method consisting of a surface layer (L1), a back layer (L2) and the intermediate layer (L3) connecting the surface layer (L1) and the back layer (L2),

The surface layer (L1) is made of a yarn 21 or TPU yarn 22 coated with a hot melt resin,

The back layer (L2) is made of a yarn 21 or TPU yarn 22 coated with a hot melt resin,

The intermediate layer (L3) is a functional nonwoven fabric, characterized in that made of a fiber yarn (23).
The method according to any one of claims 2 to 5,

Yarn 21 is coated with the hot melt resin,

The hot melt resin 21d is coated on the outer surface of the fiber yarn 21c composed of the core 21a and the seed 21b in an amount of 0.03 to 0.5 g / m,

The said fiber yarn 21c is used individually or in combination of 2 or more types from polyester yarn, nylon yarn, or cotton yarn,

The said hot-melt resin (21d) is a functional nonwoven fabric characterized by using together single or 2 types or more from polyester resin, a polyurethane resin, an acrylic resin, a polyamide resin, ethylene vinyl acetate resin, or a polyolefin resin.