KR102538497B1 - Laundry net for reducing microplastic and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a laundry net. The laundry net of the present invention comprises an envelope which is made of a porous fabric through which a fluid can pass, and wherein an opening which can be opened and closed is formed on one side and an accommodating space through which communication is possible is formed at the interior by the opening. The envelope has: a main body unit having the opening and the accommodating space; and a collection unit for collecting a microfiber or a microplastic generated from a textile product accommodated in the accommodating space. According to the present invention, the textile product is protected during a washing or drying process, increasing a lifespan and reducing generation of the microplastic. Additionally, as the microplastic generated from the textile product is collected, a discharge amount of the microplastic can be reduced.

Description

Microplastic reduction laundry net and its manufacturing method {LAUNDRY NET FOR REDUCING MICROPLASTIC AND MANUFACTURING METHOD THEREOF}

The present invention relates to a laundry net, and more particularly, to a microplastic reducing laundry net for protecting textile products in a washing or drying process and reducing microplastic generated from textile products, and a method for manufacturing the same.

Generally, micro-plastic is defined as a synthetic polymeric compound, such as a small piece of plastic, less than 5 mm in size. Microplastics are classified into primary and secondary microplastics depending on the environment in which they are produced. Among them, primary microplastics are intentionally produced, and include plastics produced directly, such as industrial abrasives or cosmetics, or plastics indirectly produced by using plastic raw materials, such as injection molding. In addition, secondary microplastics are generated by the external environment, and plastics that exist in the environment as large plastic materials are broken or broken and decomposed into fine pieces by artificial acts or natural weathering after plastic products are used or abandoned. includes

These microplastics become a factor of environmental pollution. Accordingly, in the case of primary and secondary microplastics, there is a trend of gradually improving as they are restricted by various regulations of each country, such as prohibition of use of similar substances including microbeads and prohibition of waste landfill.

Recently, as the usage of synthetic fiber products increases, the risk of microfibers, so-called tertiary microplastics, which are unintentionally generated by washing of synthetic fiber products, has been brought about. In the case of tertiary microplastics, they are created as they are separated from fibers during washing of synthetic fiber products, and are unintentionally discharged through sewers along with washing water. It is becoming.

In particular, due to the increase in the use of disposable products made of synthetic fibers due to the increase in fine dust due to industrialization or the explosive popularity of new infectious diseases, such problems of environmental pollution are emerging more and more.

In order to solve this problem, conventionally, as in Korean Patent Registration No. 10-1843236 (washing machine drain filtering system and washing machine having the drain filtering system), a filter device installed in a drain hose of a washing machine or dryer removes water generated during the washing process. Efforts are being made to reduce emissions of microplastics by filtering them.

However, a conventional filter device is directly installed in a drain hose to perform a filtration action on discharged water drained from a washing machine or dryer. In order to filter microplastics having a very small particle size, the pore size of the filter must be formed to be considerably small. As a result, when the discharge water is discharged, there is a problem in that filter clogging often occurs as bubbles of laundry detergent and various dusts are filtered together in addition to fiber fragments, which are fine plastics separated from laundry.

In order to solve this problem, conventionally, multiple filters having different pore sizes are used to filter microplastics, but the filtered microplastics are collected in the filter and block some of the pores of the filter, so the flow rate of the discharged water slows down. There was a problem with the high pressure, which clogged the filter and limited the normal drainage of the discharge water.

As a result, in the prior art, since filter replacement time is shortened due to filter clogging, there is a problem in that frequent filter replacement work is required and maintenance costs are increased.

As such, the conventional filter device installed directly in the drain hose did not solve the structural constraints, and only filters microplastics from the discharge water drained after washing or drying, and microplastics originally generated during the washing or drying process. The prevention or elimination effect of was found to be insignificant.

On the other hand, conventionally, a ball-shaped fiber collecting ball for collecting microplastics generated from textile products during washing by being put together with laundry has been disclosed. As a prior art document related to this, there is a 'microplastic fiber collection ball' of Korean Patent Registration No. 10-2172113.

However, conventional collection balls are not suitable for multiple use and high-temperature industrial washing environments due to their low durability, and there is difficulty in mass production, and the actual reduction effect of microplastics is not high. There was a problem that could not be prevented.

As such, in the past, efforts have been made to reduce microplastics by preventing microplastics from being discharged through a filtering device or by collecting microplastics generated in the washing or drying process through a collection ball, etc., but still have various problems. are doing

Republic of Korea Patent Registration No. 10-1843236 (registered on March 22, 2018) Republic of Korea Patent Registration No. 10-2172113 (registered on October 26, 2020)

The present invention has been made to solve the above problems, and an object of the present invention is to provide a microplastic reducing washing net capable of removing microplastics generated from textile products during a washing or drying process and a manufacturing method thereof.

In particular, the present invention reduces damage applied to textile products during washing or drying, reduces the generation of microplastics, and minimizes the discharge of microplastics generated from textile products through washing discharge water. Reduction of microplastics It is to provide a washing net and a manufacturing method thereof.

In addition, the present invention is to manufacture a laundry net that can be used for home and industrial purposes while increasing durability against multiple uses and high temperatures, and that can reduce costs and mass-produce through mass production and manufacture the same. That is, an object of the present invention is to provide a washing net and a method for manufacturing the same, which minimize the risk of damage due to a material having durability even when used in an industrial washing or drying environment performed at high temperature and high pressure.

In addition, the present invention is to manufacture a washing net capable of minimizing the discharge of fine plastics by selecting an appropriate space neck size for collecting fine plastics in a fine filter constituting the washing net. That is, an object of the present invention is to provide a washing net formed in a size capable of collecting microplastics and having a water-permeable or breathable structure so that a smooth washing or drying process can be performed, and a method for manufacturing the same. it is for

In order to achieve the above object, the washing net for reducing microplastics of the present invention includes an envelope made of a porous fabric through which a fluid can pass, having an openable opening formed on one side and a receiving space capable of communication through the opening formed therein. The envelope may include a main body having an opening and an accommodating space, and a collecting unit for collecting microfibers or microplastics generated from textile products accommodated in the accommodating space.

In addition, the collecting unit may be formed of at least one void in the form of a mesh, and the space ratio of the void may be between 15% and 40%. Here, yarns having a wire diameter of 30 to 50 μm may be used so that the space rate of the voids of the collecting part is maintained at 25% or more and the space neck is formed at 60 μm or less, and the number of wires per inch is selected at 250 to 330. It can be. In particular, the collecting unit uses a yarn having a wire diameter of 30 to 50 μm, and voids can be formed within a range having a space ratio of 25 to 40%, a space neck size of 40 to 60 μm, and a mesh count of 230 to 330 there is. More preferably, the collecting unit uses a yarn having a wire diameter of 31 to 40 μm, and the voids are within the range of having a space ratio of 30 to 37%, a space neck size of 42 to 58 μm, and a mesh count of 250 to 330 can be formed In addition, the collecting unit uses a yarn having a wire diameter of 38 to 42 μm or about 40 μm, a space ratio of 31 to 35% or about 33%, a space neck size of 50 to 54 μm or about 52 μm, 260 to 300 or It can have about 280 mesh counts.

On the other hand, the envelope may include at least one pair of microsheets in which the collecting portion is formed on the surface and circumferential sides are coupled to each other, and a coupler for fixing the microsheets.

Moreover, the microsheet has a length extending along one direction of the microsheet and at least one first fiber yarn continuously disposed adjacent to each other, and a length extending along a direction orthogonal to the first fiber yarn. It may include at least one second fiber yarn woven alternately crossing the top and bottom of each of the continuous first fiber yarns.

In addition, each of the first fiber yarn and the second fiber yarn may be formed of any one of acrylic yarn, polyester yarn, and nylon yarn.

In addition, the microsheet of the present invention may be heat treated to prevent shrinkage.

And, the coupler may include any one of a taping member, a patterning sewing member, an adhesive member, or a sealing member.

On the other hand, the microplastic-reducing washing net of the present invention further includes a pair of outer sheets coupled to each outer surface of the envelope to form a protective layer for the envelope, and the outer sheet is made of multifilament yarns in which different materials are plied. can be chosen

In addition, the microplastic-reducing washing net of the present invention may further include a fastener installed on one side of the envelope to open and close the opening of the accommodation space, and a strap sheet provided on the other side of the envelope opposite to the fastener. . Here, the fiber product is protected by the envelope during washing or drying to increase the lifespan and reduce the generation of microplastics, and by collecting the microplastics generated from the fiber products, the emission of microplastics is reduced.

A method for manufacturing a microplastic-reducing laundry net according to the present invention includes forming a first sheet having micropores, forming a second sheet having pores larger than the micropores, and forming the first sheet. It may include a sheet combining step of attaching a second sheet to form a net.

In addition, the first sheet forming step includes a yarn preparation step of preparing a pair of fiber yarns each composed of monofilament yarns, a pretreatment step of pre-treating the pair of fiber yarns, and at least one micropore by weaving the pair of fiber yarns. It may include a weaving step of forming a first fabric having a fabric, a post-processing step of forming a first sheet by processing the first fabric, and an inspection step of inspecting the fabricated first sheet.

Here, the post-treatment step may include a heat treatment process of 195°C or more and 215°C or less.

In addition, the sheet bonding step includes a sheet arrangement step of disposing a pair of first sheets, a laminated sheet forming step of forming a laminated sheet by laminating a second pair of sheets on each outer surface of the first sheet, and attaching the laminated sheet. A fixing step of fixing by a member may be included.

Moreover, in the fixing step, the attachment member may include any one of a taping member, a patterning sewing member, an adhesive member, and a sealing member.

As described above, according to the method for manufacturing a microplastic-reducing laundry net according to the present invention and the laundry net manufactured using the same, it is possible to protect textile products during washing or drying and to remove microplastics generated from textile products.

In particular, it is possible to prevent microplastics from being generated by reducing damage applied to textile products during washing or drying, and to minimize discharge of microplastics to the outside together with discharged water by collecting microplastics generated from textile products.

At this time, the present invention can increase the shelf life of the textile product by reducing the damage applied to the textile product.

In addition, the present invention can manufacture a washing net that can be used for home and industrial purposes while increasing durability against multiple uses and high temperatures, and can be mass-produced and cost-saving through mass production.

In addition, the present invention can provide a washing net that minimizes the risk of damage so that it can be used repeatedly and multiple times due to its durable material even when used in an industrial washing or drying environment conducted at high temperature and high pressure.

In addition, according to the present invention, discharge of microplastics can be minimized as the microfilters constituting the washing net are manufactured with an appropriate space neck size for collecting microplastics.

In particular, according to the present invention, a washing net having a water-breathable or air-permeable structure can be manufactured, so that it is formed in a size capable of collecting microplastics, and a smooth washing or drying process can be performed.

On the other hand, according to the present invention, when a plurality of fabrics are combined in manufacturing a laundry net, it is possible to minimize the discharge of microplastics through the coupling part by employing a complex coupling structure.

1 is a perspective view schematically showing a microplastic reducing laundry net according to an embodiment of the present invention;
2 is an exploded perspective view schematically illustrating a washing net for reducing microplastics according to an embodiment of the present invention;
Figure 3 is an enlarged view of a portion of the collecting unit of the washing net of Figure 2;
4 is a plan view schematically showing a microplastic reducing laundry net according to an embodiment of the present invention;
5 is a cross-sectional view of an edge side where a coupler of a microplastic reducing laundry net according to an embodiment of the present invention is located;
Figure 6 is an enlarged view of the surface of the outer sheet of the microplastic reduction laundry net according to an embodiment of the present invention;
7 and 8 are cross-sectional views of a washing net for reducing microplastics according to an embodiment of the present invention;
9 is an image of a surface state of a general cloth before washing and after washing once in an experiment to measure the performance of a washing net for reducing microplastics according to an embodiment of the present invention;
10 is an image of a surface state of a Velcro cloth before washing and after washing once in an experiment for measuring the performance of a washing net for reducing microplastics according to an embodiment of the present invention;
11 is a graph image of data obtained by measuring a weight reduction rate of a general cloth according to the number of washings in an experiment for measuring the performance of a microplastic reducing washing net according to an embodiment of the present invention;
12 is an image showing a graph of data obtained by measuring a weight reduction rate of a Velcro cloth according to the number of washings in an experiment for measuring the performance of a microplastic reducing laundry net according to an embodiment of the present invention;
13 is a view of a product washed 250 times with (A) and without (B) the washing net of the present invention in an experiment to measure the performance of the washing net for reducing microplastics according to an embodiment of the present invention. image taken of the surface;
14 is a view of a product washed 250 times with (A) and without (B) the washing net of the present invention in an experiment to measure the performance of the washing net for reducing microplastics according to an embodiment of the present invention. image taken of the surface;
15 is an image of fiber debris collected by the laundry net in an experiment to measure the performance of the microplastic reducing laundry net according to an embodiment of the present invention; and
16 to 19 are flowcharts schematically illustrating a method of manufacturing a microplastic reducing laundry net according to an embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms.

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

1 is a perspective view schematically illustrating a microplastic reducing laundry net according to an embodiment of the present invention.

First, referring to FIG. 1 , the washing net for reducing microplastics of the present invention may include an envelope 100 composed of a main body 101 having an opening 102 formed on one side and an accommodation space 103 therein. there is.

The envelope 100 may be formed of a porous fabric so that fluid can pass through. For example, the envelope 100 may be formed to have a pocket, bag, or mesh shape, and may be formed of a body portion 101 having an envelope shape as an example. An accommodation space 103 may be formed inside the envelope 100 and an opening 102 may be formed on one side. At this time, the envelope 100 may be formed such that the opening 102 can be opened and closed so that access to the accommodation space 103 formed therein is possible. Here, it is preferable that the opening 102 is formed to enable access to the accommodation space 103 by a separate opening and closing structure to be described later. As the opening and closing structure of the envelope 100, a zipper may be used or a detachable sewing structure may be provided.

In addition, textile products for washing or drying may be introduced into the accommodation space 103 of the envelope 100 through the opening 102 .

Here, the envelope 100 may include a collection unit 104 for collecting microfibers or microplastics generated during washing or drying from textile products accommodated in the accommodation space 103 .

The collecting unit 104 may be formed in the form of a hole on the surface of the envelope 100, which is a porous fabric. At this time, the collecting unit 104 may be mainly formed on the inner surface of the receiving space 103 of the envelope 100 to communicate with the outside because the envelope 100 has a structure of a double network, as will be described later.

The collecting unit 104 may act to prevent the discharge of microfibers or microplastics to the outside by the fiber product accommodated in the accommodation space 103 .

Here, the collecting unit 104 may be formed of at least one air gap made of a mesh shape. The collecting unit 104 may be formed of a collecting hole 110a to be described later. The collecting unit 104 may be formed so that the opening area of the air gap is between 15% and 40%. At this time, the collecting unit 104 may have a wire diameter of 30 μm to 50 μm in units of wires constituting the mesh. The mesh size of the collecting unit 104 may be provided differently depending on the size of wire diameter or post-processing process. For example, when the wire diameter of the collecting unit 104 is about 30 μm to 35 μm, an opening of about 30 μm to 40 μm is secured and a space rate is formed to have a size of 19% to 30%. When the wire diameter is about 40 μm to 45 μm, a space neck of about 35 μm to 50 μm is secured and the space ratio can be formed to a size of 20% to 35%. At this time, in the case of the former, tensile strength of 6 to 18 can be secured, the number of holes per inch is 140 to 150, and the number of meshes can be formed to be about 350 to 400. In the latter case, a tensile strength of 14 to 16 may be secured, the number of holes per inch may be 110 to 120, and the number of meshes may be approximately 280 to 310. When the tensile strength is low, it may be formed to compensate for the insufficient strength through a post-treatment process. The mesh structure of the collecting unit 104 is not necessarily limited thereto, and may be implemented differently depending on the embodiment.

Here, since the flow of fluid into the washing net decreases as the space ratio decreases, the effect of washing or drying may be reduced. Therefore, it is possible to improve the flow of fluid by reducing the size of the wire diameter to secure a large number of meshes and widen the space neck. can

Due to its fine size, the collecting unit 104 acts to prevent the passage of fine fibers or fine plastics generated during washing or drying from textile products accommodated in the accommodation space 103 of the envelope 100, and It can trap microfibres or microplastics inside.

As such, the washing net for reducing microplastics according to an embodiment of the present invention collects microfibers or microplastics generated from textile products accommodated in the accommodation space 103 during the washing or drying process, thereby preventing them from being discharged to the external environment. You can do it.

At this time, according to the present invention, the size of the collecting unit 104 for collecting microplastics is formed in an appropriate size to form a water-breathable or breathable structure so that a smooth washing or drying process can be performed while collecting microplastics. Preferably, it is possible to minimize the emission of microplastics while maintaining drying or washing power.

In addition, since the washing net protects the textile product inside, damage to the textile product due to friction or the like can be prevented.

As a result, since the washing net of the present invention collects microplastics generated from textile products and minimizes damage caused by friction, etc., it is possible to prevent an increase in the occurrence of additional microplastics due to damage.

Therefore, the present invention can reduce the amount of microplastics discharged to the outside together with the discharged water by removing the microplastics generated from the textile product and included in the discharged water by a collecting method, and can minimize the amount of microplastics generated.

2 is an exploded perspective view schematically illustrating a microplastic reducing laundry net according to an embodiment of the present invention. And, FIG. 3 is an enlarged view of the collecting part of the washing net of FIG. 2 . Also, FIG. 4 is a plan view schematically illustrating a microplastic reducing laundry net according to an embodiment of the present invention.

Referring to FIGS. 2 and 3 , the envelope 100 of the present invention may be composed of a micro sheet. For example, the envelope 100 may be composed of at least one pair of micro sheets on the surface of which the collecting parts 104 and 110a constituting the micro mesh are formed, and the inner sheet 110 in which these micro sheets are laminated can include

The inner sheet 110 is made of a pair of micro sheets 111 and 112, as shown in FIG. 2, and the sheets 111 and 112 are stacked so that their circumferential sides are mutually coupled to each other, thereby providing an accommodation space 103 therein. ) can be configured to form. That is, the inner sheet 110 may be closed on the circumferential side except for the opening 102 . In this way, the inner sheet 110 constitutes the inner network of the envelope 100. The inner sheet 110 may have at least one collection hole 110a formed over the entire surface area. The collecting pore 110a represents the aforementioned collecting unit 104 . Here, the inner sheet 110 has been described as a member in which a pair of micro sheets 111 and 112 are stacked and coupled, but may be a type in which a single micro sheet is folded in half and the circumferential side is coupled. That is, the inner sheet 110 may be configured to form an accommodation space 103 therein, even if it is configured in any form of two sheets 111 and 112 or a single sheet, and at least one pair of sheet portions are overlapped. make up In addition, the inner sheet 110 may be fixed by an adhesive method such as thermal fusion or ultrasonic fusion, or the circumference of both sheets 111 and 112 may be fixed through a separate coupling member.

Such an inner sheet 110 may be manufactured by a weaving process, and as shown in FIG. 3, may include first fiber yarns 110b and second fiber yarns 110c. For example, these fiber yarns may be formed of any one of acrylic yarn, polyester yarn, and nylon yarn. That is, it may be configured in the form of monofilament yarn. In addition to this, these fiber yarns may have the diameter size of the collection pores 110a as described above.

The first fiber yarn 110b is a fiber member formed to have a length extending along one direction of the inner sheet 110, and may be composed of a plurality of fibers continuously arranged in a mutually adjacent form.

The second fiber yarn 110c is a fiber member formed to have a length extending along a direction orthogonal to the first fiber yarn 110b, and is composed of a plurality of fibers arranged orthogonal to the first fiber yarn, It may be passed while alternately crossing the upper and lower portions of each of the first fiber yarns 110b.

As such, the first fiber yarn 110b and the second fiber yarn 110c cross each other through the weaving process to form an integral fabric. That is, the washing net of the present invention is composed of a micro sheet in which the inner sheet 110 is woven by using the first fiber yarn 110b as a warp yarn (warp yarn) and the second fiber yarn 110c as a weft yarn (weft yarn). .

In this way, the inner sheet 110 woven by the first fiber yarn 110b and the second fiber yarn 110c has a spatial ratio of voids formed by crossing the first fiber yarn 110b and the second fiber yarn 110c. This may be formed between about 15% and 40%. That is, as it is manufactured by the weaving process, the size of the trapping pores 110a may be determined within a required appropriate range. A method of weaving the first fiber yarn 110b and the second fiber yarn 110c will be described later.

Meanwhile, the envelope 100 may include a coupler 130 as shown in FIGS. 2 and 4 . That is, a pair of micro sheets 111 and 112 may be fixed to the inner sheet 110 by the coupler 130 .

The coupler 130 is for fixing the inner sheet 110 constituting the envelope 100, and is disposed on the circumferential side of the inner sheet 110 to fix the pair of inner sheets 110. That is, the coupler 130 may be configured in the form of gripping the circumferential side of the inner sheet 110.

The coupler 130 may include a taping member 131.

As shown in the drawing, the taping member 131 may be made of poly tape, which is a fabric material. For example, the taping member 131 may be composed of poly tape. As an example, the taping member 131 is composed of a strip-shaped poly tape made of polyester with a width of 20 mm, and may be manufactured by a weaving process using 99 weft threads and 31 warp threads.

At this time, according to the embodiment of the present invention, the taping member 131 may be composed of a poly tape having a structure using 99 weft yarns and 34 warp yarns. Alternatively, the taping member 131 may be composed of a poly tape having a structure using 100 weft yarns and 31 warp yarns.

All of the above-mentioned methods showed improved durability and improved reduction of microplastics compared to the existing methods, and it can be seen that the method in which three slopes are added forms a more dense form in terms of density and exhibits excellent efficacy in terms of tensile strength. there was.

The taping member 131 may be disposed along the circumferential side of the inner sheet 110, and may be fixed in a form in which both sides are folded toward both sides of the inner sheet 110 so as to cover the circumferential side of the inner sheet 110. there is. In this way, the taping member 131 made of poly tape is attached to the surface of the inner sheet 110 by an adhesive in a folded state, or is sewn to the inner sheet 110 in a sewing method to fix the inner sheet 110. can Alternatively, the taping member 131 may be sewn to the inner sheet 110 in a separate fixing method, and may be sewn together and fixed by, for example, a patterning sewing member 132 to be described later.

5 is a cross-sectional view of an edge side where a coupler of a microplastic reducing laundry net according to an embodiment of the present invention is located.

On the other hand, the coupler 130 may be composed of the taping member 131 as described above, but as shown in FIG. 5, any one of the patterning sewing member 132, the adhesive member 133 or the sealing member 134 It may be configured to include one more. Thus, the coupler 130 of the present invention may be composed of or include any one of the taping member 131, the patterning sewing member 132, the adhesive member 133, and the sealing member 134.

First, the patterning sewing member 132 may fix the inner sheet 110 by pattern sewing. That is, the patterning sewing member 132 may fix the inner sheet 110 as it is sewn to the inner sheet 110 in a way that is sewn by yarn. The patterning sewing member 132 may be sewn by a pattern sewing machine.

In addition, the adhesive member 133 may be composed of an adhesive tape made of an adhesive material that is fused by heat. The adhesive member 133 may fix the inner sheet 110 as both sides are thermally bonded in a melt type. At this time, the adhesive member 133 is disposed to wrap the circumferential side of the inner sheet 110 from the outside to be fused and fixed, or is disposed on the inner side of the circumferential side of the inner sheet 110 to be bonded and fixed to the inner sheet 110 on both sides. It can be. For example, as shown in the drawing, the adhesive member 133 may be a plurality of adhesive materials that are disposed between and adhered to each sheet.

In addition, the sealing member 134 may be configured to seal the circumferential side of the inner sheet (110). The sealing member 134 may be a coupler 130 that is added to the fixing structure of the patterning sewing member 132, the taping member 131, or the adhesive member 133 or used as a single structure.

When sewing by the patterning sewing member 132 or sewing on the taping member 131, the sealing member 134 may be insufficient to completely seal the rim of the laundry net, so it is additionally laminated on the surface of the coupler 130. It can be. The sealing member 134 may be configured to maintain a sealed state as it is fixed through thermal attachment. That is, the sealing member 134 is provided as a material that is heat-sealed, and a part of it is introduced into the porous surface of the coupler 130 or in contact with the surface of the coupler 130 by a heat treatment process to the surface of the inner sheet 110. It can be fused to be in direct contact. The sealing member 134 may improve the sealing effect by using a welding method using ultrasonic vibration in addition to a thermal welding method.

As such, the inner sheet 110 may be fixed by a sewing method, or fixed by an adhesive method such as thermal fusion or ultrasonic fusion, and the circumference of both sheets may be fixed through a separate coupling member.

On the other hand, the inner sheet 110 may further include a rolling part (not shown). The rolling part may be formed by bending the edge region of the inner sheet 110 . The rolling part is configured in such a way that the edge region of the sheet is grounded toward one side surface, and the circumference side can be closed as it is fixed by the coupler 130 in the grounded state. That is, while the rolling part is formed in a double structure in a folded state, it is possible to prevent microplastics from being discharged to the outside by blocking gaps from being generated on the circumference side. This is because, even if the circumferential side of the pair of sheets is fixed by the coupler 130, if the sealing is not completely achieved, microplastics of a very small size can pass through the gap formed by sewing, to prevent

This rolling part may be a form in which a pair of sheets are simultaneously folded toward the upper or lower surface of the inner sheet 110 (V-shaped cross section), but the edges of the pair of sheets disposed to contact each other are folded toward each other ( M-shaped cross section) can also be configured, or it can be configured in a form that is folded more than twice (N-shaped cross-section). In addition, the rolling part may be configured to be folded together with the inner sheet 110 in the same form by the outer sheet 120 to be described later.

As described above, the washing net for reducing microplastics according to an embodiment of the present invention can prevent microplastics from being discharged to the outside as the edge side is laminated by the bent part.

Referring back to FIGS. 2 and 4 , the microplastic reducing laundry net according to an embodiment of the present invention may further include an outer sheet 120 .

The outer sheet 120 may be coupled to the outer surface of the envelope 100, that is, to each outer surface of the inner sheet 110 in which mutually inner surfaces are stacked and disposed. The outer sheet 120 constitutes the outer network of the envelope 100. The outer sheet 120 has a fluid-passable structure and, like the inner sheet 110, may be made of a porous fabric manufactured through a weaving process. Here, the outer sheet 120 is coupled to the outer surface of the inner sheet 110, unlike the inner sheet 110 for collecting microplastics, and may act to supplement the durability of the inner sheet 110. That is, the outer sheet 120 may be formed of a protective layer that protects the outer surface of the inner sheet 110 to prevent damage to the inner sheet 110 due to friction during washing or drying.

Therefore, the outer sheet 120 may be formed of a mesh of a size that allows fluid passage while maintaining durability, rather than being limited to a small size of the mesh, and is formed of a mesh of a larger size than the inner sheet 110, but has rigidity. It is preferable to be made of a fabric having a.

Here, the outer sheet 120 may have a passage gap 120a formed as a porous passage part 105 on the surface. Passage gap (102a) may be configured in the form of a hole having an appropriate size to allow the passage of fluid to the inner sheet 110 while performing a protective function for the surface of the inner sheet (110). For example, the outer sheet 120 may be composed of air gaps between fibers as it is manufactured by multi-filament yarns in which different materials are plied. Accordingly, the outer sheet 120 may be formed as a protective layer of the envelope 100 by multi-filament yarns, and may protect the inner sheet 110 because it has durability against external friction.

In addition, the passage gaps 120a of the outer sheet 120 may be formed of meshes having different shapes and sizes. For example, the mesh may be formed of a polygon such as a triangle, a quadrangle, or a pentagon, or a hole of an ellipse or a circle.

6 is an enlarged view of the surface of the outer sheet of the microplastic reducing laundry net according to an embodiment of the present invention. For example, as shown in FIG. 6 , the passage gap 120a may include a first mesh portion 120b that is a square mesh and a second mesh portion 120c that is a hexagonal mesh, and these meshes Sections may be arranged crosswise. Accordingly, in the through hole 120a, a mesh having two types of sizes or shapes may be present. At this time, in the outer sheet 120, mesh parts having different sizes and shapes may be formed through knitting. A method of manufacturing by knitting the outer sheet 120 will be described later.

The outer sheet 120 may be connected to the inner sheet 110 by the coupler 130 described above. That is, the outer sheet 120 is disposed to be laminated on the outer surface of the inner sheet 110, and is fixed together when the inner sheet 110 is fixed by the coupler 130 so that it can be coupled with the inner sheet 110. In addition, although the outer sheet 120 may be connected to the inner sheet 110 through a separate fixing means, it is more preferable to fix together by a coupler 130 for structural simplification.

Here, in the washing net for reducing microplastics according to an embodiment of the present invention, since the inner sheet 110 and the outer sheet 120 having different mesh sizes are fixed through the coupler 130, the shrinkage rate is reduced due to the difference in fabrics. formed differently. Thus, as the mesh structure of the inner sheet 110 and the outer sheet 120 is heat-fixed through heat treatment, damage to the coupling portion due to a difference in shrinkage generated during washing or drying can be minimized.

Meanwhile, referring again to FIGS. 2 and 4 , the laundry net for reducing microplastics according to an embodiment of the present invention may further include fasteners 140 .

The fastener 140 may be installed on one side of the envelope 100 to open and close the opening 102 , which is an entrance of the accommodation space 103 . The fastener 140 may be integrally coupled to the envelope 100 through the fixing structure by the coupler 130 as described above. The fastener 140 may be configured in a locking type structure to open and close the opening 102 . For example, the fastener 140 may be configured in the form of a zipper, which is a locking means of a structure combining elements on both sides by a slider. At this time, like the coupler 130, the fastener 140 may have a sealing structure applied to a coupling portion to the sheet.

Here, the fastener 140 may be disposed on the circumferential side where both sheets of the envelope 100 meet, but may also be disposed spaced apart from the circumference to the front or rear side. That is, the fastener 140 may be disposed on the upper end side of the envelope 100 in the drawing, but may also be disposed at a position spaced apart from the upper end to the lower side. In other words, the opening 102 of the envelope 100 may be formed as a cut line on either side of the sheet, rather than a one-sided opening formed by both sheets, and the fastener 140 is attached to the opening 102 formed by the cut line. can be placed.

7 and 8 are cross-sectional views of a washing net for reducing microplastics according to an embodiment of the present invention.

Referring to FIGS. 7 and 8 , the microplastic reducing laundry net according to an embodiment of the present invention may further include a strap sheet 150 .

As shown in FIGS. 7 and 8 , the strap sheet 150 may be installed on either side of the envelope 100 so as to be adjacent to the opening 102 . The strap sheet 150 is disposed to face the fastener 140 and can prevent microplastics from flowing out through the fastener 140 in a locked state of the fastener 140 . That is, the strap sheet 150 may be formed as a patch sheet for the fastener 140 .

In this embodiment, the envelope 100 may be represented as being composed of a front part 100a disposed on the top or front side and a rear part 100b disposed on the bottom or rear side, as shown in the drawings. The front portion (100a) and the rear portion (100b) may include an inner sheet 110 and an outer sheet 120 of each pair. Here, the envelope 100 may be configured so that the rear portion 100b extends beyond the front portion 100a so that the opening 102, that is, the location of the fastener 140 is disposed on the surface of the front portion 100a. And, the strap sheet 150 may be disposed to face the fastener 140 on the inner surface of the rear portion 100b.

The strap sheet 150 may be formed of a band member having a wider width than the width at which the fastener 140 is disposed. As shown in FIG. 7, the strap sheet 150 may be provided as a separate member coupled to the rear portion 100b, but as shown in FIG. 8, any one of a pair of micro sheets laminated and coupled As is formed of a sheet having a longer length than the other one, the extended portion may act as the strap sheet 150. That is, while the length of the rear portion 100b is extended, the extended portion may be bent inward, and the strap sheet 150 may be formed by the bent portion.

This strap sheet 150 may be composed of a micro sheet manufactured in the same way as the inner sheet 110, and an additional protective sheet (not shown) may be attached and fixed on the surface. The strap sheet 150 may be protected by a protective sheet.

According to the washing net for reducing microplastics of the present invention configured as described above, it is possible to prevent microplastics from being discharged by the strap sheet 150 to the joint portion of the fastener 140 .

The washing net for reducing microplastics according to an embodiment of the present invention as described above can remove microplastics generated from textile products during washing or drying.

In addition, the present invention can manufacture a laundry net that can be used for home and industrial use while increasing durability against multiple uses and high temperatures, and can be mass-produced and cost-saving through mass production due to a fabric manufacturing method.

In addition, the present invention can provide a washing net that minimizes the risk of damage due to durable materials even when used in an industrial washing or drying environment performed at high temperature and high pressure.

In addition, according to the present invention, discharge of microplastics can be minimized as the microfilters constituting the washing net are manufactured with an appropriate space neck size for collecting microplastics.

In particular, according to the present invention, a washing net having a water-breathable or air-permeable structure can be manufactured, so that it is formed in a size capable of collecting microplastics, and a smooth washing or drying process can be performed.

Table 1 below shows the mesh characteristics of various fabrics used in the microsheet constituting the inner sheet of the microplastic reducing washing net of the present invention. Specification values for space ratio, space neck, wire diameter, and number of wires per inch of each type of fabric are shown in Comparative Examples 1 to 17.

type space rate of void
Opening Area (%) space tree
Opening(㎛) wire diameter (wire thickness)
Wire Diameter(㎛) number of wires per inch
Mesh Count (pcs) Comparative Example 1 33 80 48 180 Comparative Example 2 34 81 48 195 Comparative Example 3 28 75 55 195 Comparative Example 4 33 72 48 200 Comparative Example 5 56 48 48 230 Comparative Example 6 37 58 40 250 Comparative Example 7 33 52 40 280 Comparative Example 8 36 49 31 305 Comparative Example 9 30.5 45 34 305 Comparative Example 10 21 37 40 305 Comparative Example 11 30 42 34 330 Comparative Example 12 17 31 40 330 Comparative Example 13 25 34 31 355 Comparative Example 14 19.5 31 34 335 Comparative Example 15 29 36 31 380 Comparative Example 16 20.5 30 34 380 Comparative Example 17 22.5 31 31 420

Here, in the case of washing water flow related to the washing efficiency of the washing net, when the space ratio is high, it becomes smooth, and when it is low, it becomes limited. At this time, as the thickness of the wire becomes thinner, the space ratio increases, but the durability of the washing net is weakened. Therefore, it is preferable to have a thickness greater than or equal to an appropriate thickness in order to improve durability against friction and high temperature. In addition, in the case of the performance of the filter for limiting the emission of microplastics, the efficiency is improved as the size of the space neck, that is, the size of the mesh hole is finely formed. Only when the space neck is 60㎛ or less shows the effect of reducing lint, which is a piece of fiber generated during washing, or microplastic. As it deteriorates, a design is required so that the fabric can be manufactured with 25% or more.

Referring to Table 1, the inner sheet of the washing net for reducing microplastics according to an embodiment of the present invention is shown by type so that the space rate of the air gap can be maintained at 25% or more and the space neck can be manufactured to be 60 μm or less. Among the comparative examples, it is preferable to use a yarn having a wire diameter of 30 to 50 μm, and accordingly, the number of wires per inch may be selected from 250 to 330.

A microplastic reduction washing net according to an embodiment of the present invention is a preferred example, and has a wire diameter of 30 to 50 μm, a space ratio of 25 to 40%, a space neck size of 40 to 60 μm, and 230 to 330 Laundry nets can be made using fabrics selected within a range of types with mesh counts. More preferably, it may be set to a range having a wire diameter of 31 to 40 μm, a space ratio of 30 to 37%, a space neck size of 42 to 58 μm, and a mesh count of 250 to 330 accordingly.

For example, at least one of the types of Comparative Examples 6 to 9 or Comparative Example 11 may be used, and among them, a wire diameter of 40 μm, a space ratio of 33%, a space neck size of 52 μm, and a mesh size of 280 It was confirmed that the laundry net manufactured in the type of Comparative Example 7 having a count exhibited the best characteristics among them. That is, a yarn having a wire diameter of 38 to 42 μm (or about 40 μm) is used for the collecting part of the inner sheet, a space ratio of 31 to 35% (or about 33%), and a space ratio of 50 to 54 μm (or about 52 μm) It can have a space neck size, a mesh count of 260 to 300 (or about 280).

(experimental example)

As described above, with reference to Table 1, in order to confirm the microplastic reduction characteristics of the washing nets according to the present invention selected and manufactured in an appropriate range of sizes, a comparative experiment was conducted according to whether or not the washing nets were used.

In this experiment, washing power was compared with and without the use of a laundry net when washing textile products, and the amount of microplastics generated and discharged from textile products during the washing or drying process was compared according to the use of a laundry net.

(Test method)

In this experiment, microfiber products (e.g., general-type cleaning cloths made of microfibers and Velcro-attached cleaning cloths for burlap use) are repeatedly washed and dried, and then the weight of the product is measured to estimate the amount of microplastics generated. is an experiment That is, the amount of weight increase or decrease of the microfiber product is divided into the amount of separation of the fiber debris, and the degree of generation of microplastics can be confirmed from the separated amount of separation. In addition, by comparing resultant values according to whether or not the washing net is used, the emission prevention effect of the washing net can be confirmed by comparing the discharge amount of microplastics discharged during the washing process. In addition, it is possible to visually compare the degree of contamination of products that have been washed to confirm a difference in washing power depending on whether or not a washing net is used.

(Washing and measuring method)

First, a general type and a Velcro type cleaning cloth made of microfiber are prepared. With each microfiber product, the same contaminated areas and areas are cleaned and rendered contaminated. Each of these products is divided into two categories, a group using a laundry net and a group not using a laundry net, respectively, and put into the washing machine.

In order to check the washing efficiency, the degree of contamination removal after washing once is visually observed.

Thereafter, in order to confirm the efficiency of reducing microplastics, washing is repeated 50 times and the weight of the product after drying is checked. Replace the laundry net with a new one every 50 cycles. At this time, the reduced weight per 50 unit washing counts is regarded as the separated fiber residue, that is, microplastics.

(repeated washing condition)

The laundry equipment used in the experiment was an industrial machine with a capacity of 11kg, and washing was performed at a temperature of about 90℃. The product was dried through natural drying and the weight was measured.

9 and 10 are images taken of the surface state of each product before washing and after washing once in this experiment. 9 shows a normal cloth, and FIG. 10 shows a Velcro cloth.

As shown in FIGS. 9 and 10 , it was confirmed that there was no significant difference in the decontamination function depending on whether or not the laundry net was used. That is, although the present invention provides a washing net made up of microscopic pores to reduce microplastics, it can be confirmed that the difference depending on whether or not the washing net is used is insignificant in terms of decontamination, which is an essential washing function. It can be understood that even if it is used, it does not significantly affect the cleaning power.

Table 2 below shows the results of the measured data (weight reduction rate according to the number of washings) tested for each product (general cloth and Velcro cloth) in this experiment. And, FIGS. 11 and 12 are images showing graphs of data obtained by measuring a weight reduction rate according to the number of times of washing for each product. 11 shows data measured by washing a normal cloth, and FIG. 12 shows data measured by washing a Velcro cloth. In addition, FIGS. 13 and 14 are images of each product washed 250 times. FIG. 13(A) is a surface state of a normal cloth washed 250 times using a laundry net, and FIG. 13(B) is the surface state of a normal cloth washed 250 times without using a washing net, FIG. 14 (A) is the surface state of a Velcro cloth washed 250 times using a washing net, and FIG. These are images showing the surface condition of Velcro cloth washed 250 times without use. In addition, FIG. 15 is an image of the fiber waste 1 collected by the laundry net after washing.

Product type laundry net Weight reduction rate (%) according to the number of washings (times) 50 times 100 times 150 times 200 times 250 times plain cloth use 0.27 0.91 1.23 1.50 1.81 plain cloth unused 0.40 1.30 2.46 3.15 3.99 velcro cloth use -0.56 0.14 1.15 1.77 2.45 velcro cloth unused -0.33 1.61 2.80 4.65 7.88

Referring to FIGS. 11 and 12 and Table 2, it was confirmed that there was a difference in weight loss between products washed using the laundry net and products washed without the laundry net.

For example, as shown in Table 2, in the case of Velcro-type cloth products, when washing 250 times, products washed without a laundry net showed a weight loss rate of 7.88%, and products washed using a laundry net showed a weight loss rate of 2.45%. , It was confirmed that the weight reduction rate of the product was reduced by about 68.9% by using the washing net of the present invention.

In addition, as shown in FIGS. 13 and 14 , it can be seen that the change in abrasion state of the surface of the product washed without using the laundry net is more serious than that of the product washed using the laundry net. That is, it can be confirmed that the amount of fiber lost from the product varies depending on whether or not the laundry net is used. Here, since the textile product is protected by using the washing net, damage to the textile product during washing or drying can be reduced.

In addition, as shown in FIG. 15, it was confirmed that as the fiber waste 1 generated from the textile product remains in the laundry net, the fiber waste 1 is collected by the collecting unit of the laundry net. These fiber scraps 1 remain inside the washing net in a state of agglomeration around the circumference, which is the pocket area of the washing net. That is, according to the washing net for reducing microplastics according to the present invention, discharge to the outside can be minimized by collecting microplastics.

Therefore, according to the washing net for reducing microplastics of the present invention, even if the washing net is used, it is possible to reduce the generation or discharge of microplastics without being greatly involved in the washing power of washing.

16 to 19 are flowcharts schematically illustrating a method of manufacturing a microplastic reducing laundry net according to an embodiment of the present invention.

Referring to FIG. 16, according to the method for manufacturing a microplastic-reducing laundry net according to an embodiment of the present invention, as shown in FIG. 16, a first sheet manufacturing step of forming a first sheet as an inner net (S100) , It may include a second sheet manufacturing step (S200) and a sheet combining step (S300) of forming a second sheet as an outer network.

Referring to FIG. 17, the inner network manufacturing step (S100) of the present invention includes a yarn preparation step (S110), a preprocessing step (S120), a weaving step (S130), a post-processing step (S140), and an inspection step (S150). can do. In the pretreatment step ( S120 ), a sizing process, a shaping process, and a shaping process may be performed. In the post-treatment step (S140), a heat treatment process and a coating process may be performed. In this way, in the internal network manufacturing step (S100), a sheet as a porous fine filter is formed through each process. That is, the original fabric of the microsheet can be manufactured.

According to the yarn preparation step (S110), it is possible to prepare the weft and warp yarns for the weaving process. In the embodiment of the present invention, polyester monoyarn may be used, and the first fiber yarn 110b and the second fiber yarn 110c used as weft and warp yarns are prepared, respectively. The wire diameter size of each fiber yarn may play a major role in determining the number of meshes or pore size, and may be made of, for example, mono yarns of 30 μm to 50 μm.

Next, according to the pretreatment step (S120), the prepared weft yarn and warp yarn can be processed in an appropriate state required for weaving. The preprocessing step ( S120 ) may include a sizing step ( S121 ), a shaping step ( S122 ) and a shaping step ( S123 ).

In the sizing step (S121), a sizing operation is performed by applying glue to the fiber yarn for smooth weaving operation, which is also called a sizing operation, and various additives such as an acrylic charge agent are mixed and attached during warping operation. Thus, it is possible to increase the strength of the fiber yarn and improve weavability. For the sizing operation, an acrylic component was used to prevent the yarn from breaking during weaving, and an emulsion and a charge agent can be used to prevent static electricity from occurring. By passing through various rollers and applying a certain pressure, the fiber yarn is covered with glue, and the sizing operation can be completed through heat drying.

In the warping step (S122), a warping operation may be performed in which the sizing operation is completed by neatly winding the fiber yarns around the beam and winding the fabric to a width of the fabric through a beaming operation. Canonization operations can be performed by canonicalization.

In the threading step (S133), as a warp yarn preparation process for weaving, the drawing in work can be completed by passing the warp yarn through a dropper, heald, and read.

According to the weaving step (S130), it is possible to weave by crossing the warp and weft yarns alternately up and down one by one in a plain-weave method. That is, as a plain weave weaving process, warp yarns and weft yarns are crossed at a 1:1 ratio and a plurality of tissue points are formed, so that a fabric having a simple structure and excellent strength and durability can be manufactured. In particular, there is an advantage that it is possible to manufacture a thin fabric. And, in the weaving step (S130), the fabric can be manufactured using a projectile type loom. This has the advantage of producing wide fabrics. These weaving processes include warp shedding motion, weft insertion motion, beating motion, warp let-off motion, fabric winding motion, and warp stop motion (warp motion). stop motion), and weft stop motion, the fibers may be woven. The first fabric constituting the inner network may be formed by the weaving step (S130). At least one micropore may be formed in the first fabric, and the specifications of the micropore may be the same as the collection pores 110a described in the above-described embodiment.

In the post-processing step (S140), a heat treatment process for securing thermal stability of the fabric manufactured by the weaving process may be performed. For example, a heat treatment step (S141) may be included, and the fabric width of the fabric may be fixed to a constant by heat-fixing in a drying method using a tenter device, preventing twisting and making the mesh a certain size. can be maintained as In addition, shrinkage may be minimized through heat treatment.

In the heat treatment step (S141), at a heat treatment temperature of 200 ° C., a tensile strength of about 30.6 kgf (width direction) and a tensile strength of about 31.9 kgf (length direction) were measured, and the shrinkage rate during one heat treatment was -2.8% in the width direction. , -4.3% in the longitudinal direction. At a heat treatment temperature of 210℃, tensile strength of about 31.9kgf (width direction) and tensile strength of about 32.1kgf (lengthwise direction) were measured, and the shrinkage rate during one heat treatment was -2.5% in the width direction and -4.0% in the length direction. appeared as When the heat treatment temperature was 210 ° C or higher, the strength was lowered and the durability was somewhat insufficient, and when the heat treatment temperature was 200 ° C or lower, it was confirmed that the shrinkage rate was 5% or more, making it unsuitable for use. Accordingly, the heat treatment process may be set to a heat treatment temperature of 195° C. or more and 215° C. or less, and is preferably set to a heat treatment temperature in the range of 200 to 210° C.

Additionally, a coating step (S142) may be included. The coating operation may be performed by completely dipping the heat-treated fabric in the coating liquid, removing the remaining coating liquid, and then completely drying the fabric.

In this post-processing step (S140), a process of cutting the fabric of the sheet into an appropriate size may be further included, and it may be cut into a size suitable for manufacturing a laundry net.

Finally, in the inspection step (S150), an external inspection of the fine filter fabric and an inspection using a microscope may be performed. The appearance inspection machine used in the inspection process may include a control box, an illuminance panel, a control panel, a frame, a fabric basket, and a fabric detection sensor. The fabric basket may be a basket in which a plurality of shafts are arranged in an arc-shaped cross section to stably support the fine filter fabric. In the visual inspection, it is basically possible to check external problems such as tearing of the fabric, omission of weft warps, errors in width and length during work, and contamination that occur during work. In microscopic inspection, the finished fabric can be inspected by measuring the number of meshes per inch, wire diameter thickness, overall fabric thickness, tensile strength, and space neck size.

In this way, the first sheet, that is, the fine filter fabric used as the inner sheet 110 can be manufactured by the inner network manufacturing step (S100).

Referring to FIG. 18, in the step of manufacturing an outer network (S200) of the present invention, a fabric for an outer network composed of an outer sheet may be manufactured. The outer net is intended to improve the durability of the inner net, and unlike the inner net made of microfilters, it may be made of a porous fabric capable of passing fluid. At this time, the outer network may be made of a fabric made of a durable quadrangular mesh or a densely formed hexagonal mesh, and may be composed of a fabric having a single mesh structure or a double mesh having two meshes.

This outer net manufacturing step (S200) may include a yarn preparation step (S210) and a knitting step (S220). In addition, the outer net manufacturing step (S200) may further include a dyeing step (S230), and an inspection step (S240) may be additionally performed as needed.

In the yarn preparation step (S210), polyester 150D/144F may be used when producing a square mesh, and polyester 150D/144F and 150D/288F may be used in combination when manufacturing a double network of hexagonal mesh. When polyester is used, damage can be prevented during washing or drying at high temperatures due to its excellent heat resistance. The prepared yarn may be placed on a knitting machine. In addition, the yarn used in manufacturing the outer net may be composed of multifilament yarn in which different materials are plied.

In the knitting step (S220), a knitting process may be performed using prepared yarns. Yarns can be woven in a knitting manner by means of a knitting machine, and blended fabrics can be produced. In this case, as the knitting may be performed using composite yarns, a step of forming the yarns into composite yarns may be performed prior to the knitting step, and the composite yarns manufactured from the step of forming composite yarns may be used in the present knitting step. A second fabric constituting the outer network may be formed by the knitting step (S220). At least one air gap may be formed in the second fabric, and the air gap may be formed identically to the passage air gap 120a described in the above-described embodiment.

In this way, the second sheet, that is, the fine filter fabric used as the outer sheet 120 can be manufactured by the outer net manufacturing step (S200).

The fabric manufactured by the knitting process can be used as an outer network, and a second fabric constituting the outer network can be formed.

As such an outer net is combined with an inner net, it can be manufactured as an integral laundry net.

Referring to FIG. 19, in the sheet combining step (S300) of the present invention, the inner network and the outer network are combined.

In the sheet coupling step (S300), the first sheet constituting the inner network and the second sheet constituting the outer network are stacked with each other, and after arranging couplers for fixing the sheets, the coupler is used to arrange the sheets. can be fixed. This coupling step (S300) may include a sheet arrangement step (S310), a laminated sheet forming step (S320), a fixing member arrangement step (S330), and a fixing step (S340).

At this time, the inner network and the outer network manufactured in the above steps may be cut into appropriate sizes and prepared. That is, the sheet combining step (S300) may further include a step of cutting the fabric of the sheet into an appropriate size, respectively, prior to the arranging step of preparing the sheets. Can be cut to size. The sheet thus prepared in an appropriate size can be used in the following steps.

First, in the sheet arrangement step (S310), a pair of first sheets may be prepared.

And, in the step of forming a laminated sheet (S320), a laminated sheet may be prepared by arranging a pair of second sheets disposed on the outer surface of the first sheet to be stacked.

Here, according to the fixing member arrangement step (S330), the coupler may be disposed on the circumferential side of the laminated sheet. At this time, the patterning sewing member and the taping member may be used together as a coupler, which is a fixing member. That is, the taping member may be disposed around the laminated sheet, and the patterning sewing member may be formed through a fixing step to be described later. Alternatively, in the coupler arrangement step, at least one or more of the above-described coupler configurations may be simultaneously used, and the sheets may be coupled in a manner in which each member is coupled.

In the fixing step (S340), the patterning sewing member can be sewn together with the taping member on the laminated sheet as a sewing operation is performed on the taping member disposed around the laminated sheet by the pattern sewing machine. In this way, the taping member and the patterning sewing member can fix the laminated sheet.

In this way, according to an embodiment of the present invention, an inner net and an outer net can be separately manufactured and combined into an integral laundry net. As such, according to the present invention, by manufacturing an inner network with fine pores and an outer network with pores larger than the micropores, respectively, while manufacturing a fabric that maximizes the collection action for microplastics, it acts as a protective sheet Through the external network, it is possible to manufacture fabric with durability.

Accordingly, the present invention can manufacture a laundry net capable of removing microplastics generated from textile products during washing or drying.

In addition, the present invention can manufacture a washing net that can be used for home and industrial purposes while increasing durability against multiple uses and high temperatures, and can be mass-produced through a simple manufacturing process, thereby reducing costs and mass-producing.

In addition, the present invention can manufacture a washing net that minimizes the risk of damage due to durable materials even when used in an industrial washing or drying environment performed at high temperature and high pressure. Accordingly, the present invention can increase the lifespan of the washing net.

Furthermore, the present invention can reduce damage applied to textile products inside the washing net during washing or drying, and can increase the shelf life of textile products.

In addition, since the present invention prevents additional generation of microplastics due to damage, it is possible to effectively reduce the generation and emission of microplastics.

In addition, according to the present invention, discharge of microplastics can be minimized as the microfilters constituting the washing net are manufactured with an appropriate space neck size for collecting microplastics.

In particular, according to the present invention, a washing net having a water-breathable or air-permeable structure can be manufactured, so that it is formed in a size capable of collecting microplastics, and a smooth washing or drying process can be performed.

In addition, the present invention adopts a complex coupling structure when combining a plurality of fabrics in manufacturing a washing net, thereby minimizing the discharge of microplastics through the coupling portion. That is, it is possible to prevent microplastics from being discharged through the bonding part as the shielding structure for the sewing line improves the weakness generated in the bonding part when the fabric is coupled.

Meanwhile, the following process shows a method of removing microplastics generated in the washing or drying process using the washing net of the present invention described above, that is, a washing or drying method using the washing net.

A washing or drying method for reducing microplastics according to an embodiment of the present invention includes the steps of inserting a textile product into an envelope, washing or drying the envelope containing the textile product in a washing machine or dryer, and completing the washing or drying process. It may include discharging the plastic fibers collected within the fibrous product and the envelope, and treating the collected plastic fibers.

In the step of putting the textile product into the envelope, at least one textile product for washing or drying is put into the receiving space of the envelope formed as a washing net to close the opening.

In the washing or drying step, the washing or drying process is performed by putting the envelope in which the textile product is accommodated into a washing machine or dryer.

In the step of discharging the plastic fibers, the washed or dried textile product and the collected plastic fibers are discharged from the envelope.

In the step of processing the plastic fibers, the collected plastic fibers are appropriately discarded. For example, plastic fibers can be treated as waste such as general garbage.

In this way, as washing or drying is performed using the microplastic reducing laundry net, exposure of microplastics to the environment while being discharged through washing water can be minimized.

In particular, even if microplastics are generated from textile products during the washing or drying process, microplastics can be collected inside the laundry net and prevented from being discharged outside the laundry net, so it is effective in reducing microplastics.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are for explanation, not for limiting the technical idea of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

100: envelope 101: main body
102: opening 103: accommodation space
104: collection unit 105: passage unit
110: inner sheet 120: outer sheet
130: coupler 140: fastener
150: strap seat

Claims (10)

A main body portion made of a porous fabric through which fluid can pass, having an opening capable of being opened and closed on one side and having an accommodation space capable of communication therein formed by the opening, and fine fibers generated from textile products accommodated in the accommodation space; It includes an envelope having a collecting part for collecting microplastics,
The envelope is
at least one pair of micro sheets having circumferential sides coupled to each other; and
And a coupler for fixing the circumferential side of the micro sheet,
The coupler,
a taping member disposed along a circumferential side of the microsheet;
a patterning sewing member for connecting the micro sheets to each other by fixing the taping member to the micro sheets using a pattern sewing method;
an adhesive member provided between the micro sheet and the taping member; and
A microplastic reducing laundry net comprising a sealing member fusion-fixed to surround a circumferential side of the microsheet and a surface of the coupler. The method of claim 1, wherein the micro sheet,
The microplastic reducing laundry net further comprises a rolling part formed to be bent in a folded shape at an edge region of the microsheet to prevent gaps. The method of claim 1, wherein the collecting unit,
A yarn having a wire diameter of 30 to 50 μm is used and is formed with at least one void made in a mesh form, the space ratio of the void is 25 to 40%, a space neck size of 40 to 60 μm, and a 230 to 330 A microplastic reducing laundry net, characterized in that formed within a range having a mesh count of . The method of claim 3, wherein the micro sheet,
at least one first fiber yarn having a length extending along one direction of the microsheet and continuously disposed adjacent to each other; and
At least one second fiber yarn having a length extending in a direction orthogonal to the first fiber yarn and woven while alternately crossing upper and lower portions of each of the continuous first fiber yarns;
Wherein each of the first fiber yarn and the second fiber yarn is selected from at least one of acrylic yarn, polyester yarn, and nylon yarn. According to claim 4,
Further comprising a pair of outer sheets coupled to each outer surface of the envelope to form a protective layer for the envelope,
The outer sheet,
A washing net for reducing microplastics, characterized in that it is selected from multifilament yarns in which heterogeneous materials are plied. According to claim 1,
a fastener installed on one side of the envelope to open and close the opening of the accommodation space; and
Further comprising a strap sheet provided on the other side of the envelope opposite to the fastener,
A microplastic reduction washing net that protects the textile product during washing or drying by the envelope to increase the lifespan and reduce the generation of microplastic, and to reduce the emission of microplastic by collecting the microplastic generated from the textile product. . As a method for manufacturing a washing net according to claim 1,
Forming a first sheet having micropores;
forming a second sheet having pores having a larger size than the micropores; and
and a sheet bonding step of attaching the second sheet to the first sheet to form a net. The method of claim 7, wherein the first sheet forming step,
A yarn preparation step of preparing a pair of fiber yarns each composed of monofilament yarns;
A pre-treatment step of pre-processing the pair of fiber yarns;
A weaving step of weaving the pair of fiber yarns to form a first fabric having at least one micropore;
A post-processing step of processing the first fabric to form a first sheet; and
A method of manufacturing a laundry net reducing microplastics comprising an inspection step of inspecting the first sheet, which has been manufactured. The method of claim 8, wherein the sheet combining step,
a sheet arrangement step of arranging the first pair of sheets;
a laminated sheet forming step of laminating a pair of second sheets on each outer surface of the first sheet to form a laminated sheet; and
A method of manufacturing a microplastic reducing laundry net comprising a fixing step of fixing the laminated sheet by an attachment member. delete

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