KR20210119788A - Manufacturing method of non-woven fabric layer wallpaper - Google Patents

Abstract

Disclosed is a manufacturing method of a non-woven fiber layer wallpaper. The manufacturing method of the non-woven fiber layer wallpaper of the present invention comprises: a manufacturing step of manufacturing a non-woven fabric; and a lamination step of laminating the non-woven fabric and a paper, wherein the lamination step comprises an application step of applying an adhesive to a top surface of the paper and a pressing step in which the non-woven fabric is laminated on the upper surface of the paper and passed between an upper part roll and a lower part roll, and a plurality of through-holes formed in the upper part roll so that the air of the non-woven fabric is discharged. Therefore, the present invention is capable of blocking a discharge of a substance harmful to the human body.

Description

Non-woven fabric fiber layer wallpaper manufacturing method {MANUFACTURING METHOD OF NON-WOVEN FABRIC LAYER WALLPAPER}

The present invention relates to a method for manufacturing a nonwoven fibrous layer wallpaper, and more particularly, to a method for manufacturing a nonwoven fibrous layer wallpaper using a nonwoven fabric and paper as materials for manufacturing the wallpaper.

Wallpaper is used to cover walls and ceilings. The basic raw material for wallpaper is usually paper, but textiles and other materials are also used. It is possible to express various colors and textures, from chemical products that are easy to maintain with relatively inexpensive materials to natural wallpaper.

In this regard, Korean Patent Application Laid-Open No. 2017-0043430 discloses an embossed silk wallpaper formed with a multi-stage foaming layer.

Laid-Open Patent Publication No. 2017-0043430 discloses that a PVC plastic sol is foamed by mixing a PVC foaming resin, a plasticizer, a stabilizer, a foaming agent, a viscosity regulator, and a filler to form a primary foaming layer on the surface of the wallpaper base paper, and the PVC foaming resin on the surface , a plasticizer, a stabilizer, a foaming agent, a viscosity modifier, and a filler are mixed to dry or foam the PVC plastisol to form a secondary foaming layer.

Laid-Open Patent Publication No. 2017-0043430 has the advantage of forming a primary foaming layer and a secondary foaming layer of different magnifications to lighten the weight of the wallpaper, and increase the workability of the wallpaper by increasing the thickness thereof.

However, Patent Publication No. 2017-0043430 has a disadvantage in that a large amount of time and energy is consumed to form the PVC foam layer.

In addition, Korean Patent Application Laid-Open No. 2017-0043430 has a problem in that dangerous chemicals are used in the process of foaming PVC plastic sol, and substances harmful to the human body are emitted.

PVC is usually made by chlorination of ethylene to produce ethylene dichloride (EDC). Chlorine gas is highly toxic, and dioxin residues are produced by the chlorine manufacturing method, and dioxin residues are also produced by the production of EDC.

In addition, organic chlorine such as hexachlorobenzene is formed as an adduct. EDC is converted to vinyl chloride monomer (VCM), and some VCM gas is released into the atmosphere of the VCM plant. VCM is converted to polyvinyl chloride (PVC).

Vinyl chloride (VCM) used as PVC blocks in buildings causes various cancers, tumors of the liver, lungs and brain, and disorders in male and female reproductive organs. Accordingly, it is reported that there is a sharp increase in congenital anomalies in villages near the VCM factory.

When various additives are added to PVC, various PVC products are made. Additives include softeners (plasticizers), stabilizers or colorants, and disinfectants that make the product soft and supple.

PVC not only causes environmental pollution during the production process, but also generates dioxins when discarded products are incinerated. In the case of landfill, toxic additives flow into the soil and contaminate groundwater.

Although environmental pollution occurs in the process of producing and disposing of PVC, a more serious environmental problem is the toxic chemicals added to PVC. Additives such as stabilizers, plasticizers, dyes, optical bleaches, flame retardants, biocides, filtration filters, foaming agents, lubricants, etc. account for more than 50% of the components of finished PVC products.

PVC raw materials are thermally or photochemically unstable, depending on the requirements of their use and expected properties, and a large number of additives are added to reduce these problems prior to the production of PVC products.

Diethylhexyl phthalate (DEHP), which is mainly used as a plasticizer to make PVC products soft, belongs to the phthalein family of chemicals. Phthalate includes DEHP, diethylhexyl adipate (DEHA), dibutyl phthalate (DBP) There is this.

These are known as environmental hormone substances. It is mainly used for adhesive films, plastic bottles, PVC flooring, wallpaper, hospital medical containers, and pesticides.

In particular, DEHP is the substance with the highest domestic production and consumption. Phthalates have effects on testis contraction, decreased sperm motility and sperm count, destruction of sperm genetic material, fetal weight loss, and decreased fertility.

Therefore, there is a need for a method capable of reducing the weight of the wallpaper without forming a PVC foam layer, while increasing the thickness of the wallpaper to increase the workability of the wallpaper.

Republic of Korea Patent Publication No. 2017-0043430 (published date: 2017.04.21)

It is an object of the present invention to provide a method for manufacturing a nonwoven fibrous layer wallpaper, which uses an eco-friendly material to block the discharge of substances harmful to the human body and to increase the workability of the wallpaper by increasing the thickness while reducing the weight of the wallpaper.

The above object, according to the present invention, a manufacturing step of manufacturing a non-woven fabric; and a laminating step of laminating the nonwoven fabric and the paper, wherein the laminating step includes an application step of applying an adhesive to the upper surface of the paper; and a pressing step of stacking the nonwoven fabric on the upper surface of the paper and passing it between the upper roll and the lower roll, wherein a plurality of through holes are formed in the upper roll so that the air of the nonwoven fabric is discharged into the hollow part of the upper roll. It is achieved by a method for manufacturing a non-woven fibrous layer wallpaper, characterized in that.

The manufacturing step, a mixing step of mixing the short fibers; a carding step of making the short fiber webs into a first layer and a second layer using different carding machines; and a bonding step of stacking the first layer and the second layer and putting them into a dryer, wherein the short fibers may include low-melting-point fibers that are melted by the heat of the dryer.

The short fibers, 10 to 50% by weight of the low-melting fiber; and 50 to 90% by weight of other fibers, and the other fibers may include one or more high-function fibers of antibacterial, deodorizing, and flame retardant.

The fineness of the short fibers may be in the range of 0.5 to 10D (denier).

The lower roll may be provided as an elastic roll made of rubber, epoxy, or silicone, and the paper and the nonwoven fabric may be compressed by the elastic recovery force of the lower roll.

The adhesive is provided as a hot melt adhesive, and an application amount of the adhesive may be in the range of 10 to 20 g/m 2 .

According to the present invention, it is possible to provide a method for manufacturing a nonwoven fiber layer wallpaper comprising a manufacturing step of manufacturing a nonwoven fabric and a laminating step of laminating the nonwoven fabric and paper, thereby blocking the discharge of substances harmful to the human body by using an eco-friendly material. there will be

In addition, by laminating the first layer and the second layer to produce a nonwoven fabric, it is possible to provide a method for manufacturing a nonwoven fabric fiber layer wallpaper, which increases the workability of the wallpaper by increasing the thickness while reducing the weight of the wallpaper.

1 is a flowchart of a method for manufacturing a nonwoven fiber layer wallpaper according to an embodiment of the present invention.
FIG. 2 is a flowchart showing the operation sequence of the manufacturing equipment used in the method for manufacturing the nonwoven fiber layer wallpaper of FIG. 1 .
FIG. 3 is a view schematically showing manufacturing equipment used in the method for manufacturing the nonwoven fibrous layer wallpaper of FIG. 1 .
FIG. 4 is a view showing the pressing step of the method for manufacturing the nonwoven fiber layer wallpaper of FIG. 1 .
FIG. 5 is a view showing the laminated paper and nonwoven fabric of the method for manufacturing the nonwoven fiber layer wallpaper of FIG. 1 .
FIG. 6 is a photograph showing the upper roll used in the pressing step of the method for manufacturing the nonwoven fibrous layer wallpaper of FIG. 1 .
FIG. 7 is a partially enlarged view of FIG. 4 .
8 is a partial cross-sectional view of the nonwoven fibrous layer wallpaper manufactured by the method for manufacturing the nonwoven fibrous layer wallpaper of FIG. 1 .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted in order to clarify the gist of the present invention.

The nonwoven fabric fiber layer wallpaper manufacturing method of the present invention uses an eco-friendly material to block the discharge of substances harmful to the human body, while reducing the weight of the wallpaper and increasing the thickness of the wallpaper to increase the workability of the wallpaper.

1 is a flowchart of a method for manufacturing a nonwoven fiber layer wallpaper (S100) according to an embodiment of the present invention.

As shown in FIG. 1 , the nonwoven fabric fiber layer wallpaper manufacturing method ( S100 ) according to an embodiment of the present invention is configured to include a manufacturing step ( S110 ) and a laminating step ( S120 ).

The manufacturing step (S110) is a step of manufacturing the nonwoven fabric 100 by processing the short fibers. The manufacturing step (S110) is configured to include a mixing step (S111), a carding step (S112) and a bonding step (S113).

FIG. 2 is a flowchart showing the operation sequence of the manufacturing equipment used in the method ( S100 ) for manufacturing the nonwoven fiber layer wallpaper of FIG. 1 .

As shown in Figure 2, the mixing step (S111) is a step of mixing the short fibers. In the mixing step (S111), the short fibers are sequentially introduced into a bale opener (1), a mixer (mix master) and a fine opener (fine opener).

First, the short fibers are opened through the bale opener (1). The short fibers opened by the bale opener 1 are divided and fed into the first mixer 2A and the second mixer 2B. The short fibers are uniformly mixed in the first mixer 2A and the second mixer 2B.

The short fibers discharged from the first mixer 2A are put into the first fine opener 3A. The short fibers discharged from the second mixer 2B are put into the second fine opener 3B. The short fibers are mixed in the first fine opener 3A and the second fine opener 3B, respectively.

The mixing step (S111) is a process for improving the mixability and uniformity of the short fibers. Excessive opening may cause problems such as blowing and drying the fibers in the carding step (S112). Therefore, it is preferable to mix the short fibers at an appropriate level in the mixing step (S111).

Short fibers consist of low melting fibers and other fibers. More specifically, the short fibers may be composed of 10 to 50% by weight of low-melting fiber, and 50 to 90% by weight of other fibers.

In order to manufacture the nonwoven fabric 100 in the nonwoven fabric fiber layer wallpaper manufacturing method (S100) according to an embodiment of the present invention, a low-melting fiber that can be formed by heat is necessarily required. The low-melting fiber may be a low-melting PET (polyethyleneterephthalate) fiber. The low melting point PET fiber may be used in an amount of 10 to 50% by weight in consideration of surface strength, abrasion resistance and wallpaper embossability.

For low-melting PET fibers, use products that melt between 110-130 degrees or 150-180 degrees. Low-melting PET fibers use 1-6D (denier) fibers. If the density of the fibers is low, the adhesive 300 may be exuded to the surface, so it is adjusted in consideration of the density. Fineness refers to the degree of fiber or yarn thickness. All of the thickness of the fiber can be expressed in denier (denier).

Other fibers include colorable PET fibers, acrylic fibers, carbon fibers and functional fibers. The functional fiber includes one or more high functional fibers of antibacterial, deodorizing, and flame retardant. The functional fiber may include a far-infrared fiber.

LOI (Limit Oxygen Index) is mainly used to indicate the degree of flammability in the air, that is, the minimum required oxygen demand for ignition. In general, oxygen makes up 20-22% of the air.

Oxygen in the air is close to 20% in large cities with bad air, and 22% in mountains with many trees. An LOI of 22% or higher usually means that it is not flammable in air. The LOI value of the flame-retardant fiber used is in the range of 26-43% to give flame-retardant functionality.

For other fibers, use a mixture of fibers with a fineness of 0.5 to 10D (denier). A fineness of 5D (denier) or more may reduce the appearance quality, such as the uniformity and touch, of the nonwoven fabric 100. Therefore, it is preferable to properly mix and use 0.5-10D (denier) fineness.

1, when the mixing step (S111) is completed, the carding step (S112) is started.

Raw cotton is usually loosened in the mixing step (S111), but a lot of foreign matters other than fibers are still mixed, and the cotton is agglomerated into small lumps. They must be separated and arranged in parallel. This process is called the carding process, and the machine used for the carding process is called a carding machine or card. The fibers in the form of cotton, combed into a card shape, are called webs.

The carding step (S112) is a step of making the carded short fibers into the first layer 110 and the second layer 120 using different carding machines. A plurality of carding machines is used in order to improve the uniformity of the surface of the nonwoven fabric 100 and to give special performance of the nonwoven fabric by adding properties between each layer.

The degree of uniformity, such as the quality or appearance of fibers or threads, is called uniformity. In particular, if the length and thickness of the fibers are even, it is advantageous not only for spinning, but also for improving the uniformity and strength of the spun yarn.

As shown in FIG. 2 , the short fibers discharged from the first fine opener 3A are put into the first carding machine 4A. The short fibers discharged from the second fine opener 3B are put into the second carding machine 4B.

FIG. 3 is a view schematically showing manufacturing equipment used in the method ( S100 ) for manufacturing the nonwoven fiber layer wallpaper of FIG. 1 .

As shown in FIG. 3 , the short fibers discharged from the first fine opener 3A fall on the first conveyor C1 through the first transfer pipe 3A1 . The short fibers are fed into the first carding machine 4A through the first conveyor C1.

The short fibers discharged from the second fine opener 3B fall on the second conveyor C2 through the second transfer pipe 3B1. The short fibers are fed into the second carding machine 4B through the second conveyor C2.

Important cardability factors forming nonwoven webs are number of crimp, fiber length, and tanning.

The bending of the fiber is called crimp, and the number of crimps per unit length of the fiber is called the number of crimps. Crimping improves spinning properties by improving entanglement between fibers during the spinning process, and gives elasticity, touch, and warmth to the product.

Use short fibers with 12 to 18 crimps/inch. If the number of crimps per unit exceeds 18 short fibers are used, carding may not proceed smoothly in the carding step (S112), and fluff may occur on the surface of the web. If the number of crimps per unit is 12 or less, the web may be easily broken during carding.

Short fibers with a length of 38 to 78 mm are used for the fiber length. Short fibers having a length of 78 mm or more may have poor carding properties, and aggregation of fibers may occur on the surface of the carded web. And in the carding step (S112), the short fibers can be easily broken. Therefore, it is preferable to use a fiber length of 78 mm or less.

When the fiber length is 38 mm or less, there is a problem that the physical bonding force between the short fibers is weakened in the process of transferring the web after carding, so that streaks may occur in the longitudinal direction of the nonwoven fabric 100 .

The oil content (OPU; oil pick up) of short fibers is 0.2±0.1%, which is advantageous for improving carding properties. If the emulsion content is 0.1% or less, the web may generate static electricity and the web may be dried in a carding machine. On the other hand, even when the content of the emulsion is 0.4% or more, a phenomenon in which the web is dried in the carding machine may occur.

The short fibers are processed into the first layer 110 in the first carding machine 4A. The short fibers are processed into the second layer 120 in the second carding machine 4B. The weight of the first layer 110 and the second layer 120 is set to 15 to 25 GSM, respectively. GSM (grams per square meter) means the weight (g) per square meter (m2) of the fabric.

As shown in FIG. 1 , when the carding step S112 is completed, the bonding step S113 is started. The bonding step S113 is a step in which the first layer 110 and the second layer 120 are stacked and put into the dryer 5 .

As shown in FIG. 3 , the first layer 110 discharged from the first carding machine 4A is transferred through the third conveyor C3 . The second layer 120 discharged from the second carding machine 4B is stacked on the upper surface of the first layer 110 being transferred.

The weight of the stacked first layer 110 and the second layer 120 , that is, the weight of the nonwoven fabric 100 satisfies 30-50 GSM. 30-50GSM is set as a weight advantageous for the embossing pattern state and printing process, which is a post-processing after the pressing step (S122).

It should be understood that the illustration of the dryer 5 is omitted in FIG. 3 . Although not shown, the stacked first layer 110 and second layer 120 are fed into the dryer 5 through the third conveyor C3. The temperature inside the dryer 5 can be adjusted within the range of 180 to 200 degrees according to the ratio of the low-melting fiber.

As described above, the short fibers include low-melting-point fibers that are melted by the heat of the dryer 5 . The low-melting-point fiber is melted by the internal temperature of the high-temperature dryer 5, and serves to bridge the fibers that do not melt at that temperature.

That is, the low-melting fiber of the first layer 110 serves to entangle the short fibers of the first layer 110 . And the low-melting fiber of the second layer 120 serves to entangle the short fibers of the second layer 120 . Accordingly, the low-melting fiber improves the strength and wear of the first layer 110 and the second layer 120 .

In addition, the first layer 110 and the second layer 120 are bonded by the thermal energy of the dryer (5). Therefore, the nonwoven fabric 100 can be manufactured without using a separate adhesive material.

Although not shown, the nonwoven fabric 100 having improved strength in the dryer 5 passes through the cooling roll. It should be understood that the illustration of the cooling roll is omitted in FIG. 3 . The temperature of the cooling roll is maintained at 15-18 degrees.

The width shrinkage range of the nonwoven fabric 100 by the cooling roll is about 4 to 6 cm is appropriate. As shown in FIG. 3 , the nonwoven fabric 100 , whose width contraction is completed, is transferred to overlap the paper 200 through the apron AP.

1, when the manufacturing step (S110) is completed, the lamination step (S120) is performed. Laminating step (S120) is a step of laminating the nonwoven fabric 100 and the paper 200. Laminating step (S120) is configured to include a coating step (S121) and a pressing step (S122).

The application step S121 is a step of applying the adhesive 300 to the upper surface of the paper 200 . As the paper 200, paper for wallpaper may be used. The weight of the paper 200 is 100-150 GSM. As shown in FIG. 3 , the paper 200 is fed through an unwinder 6 .

The paper 200 is transferred through the fourth conveyor C4. The adhesive 300 is coated on the upper surface of the paper 200 by a spray method using a hot melt nozzle (7). The application amount of the adhesive 300 may be determined within the range of 10 to 20 g/m 2 according to the weight of the nonwoven fabric 100 .

The adhesive 300 of a certain pressure is uniformly sprayed along the hole of the nozzle 7 . The proper pressure of the hot melt nozzle (7) is set to 5~7bar and used.

The spraying angle of the hot melt nozzle 7 is preferably 25 to 35 degrees. When the angle of the hot melt nozzle 7 is 35 degrees or more, the hot melt adhesive 300 may be blown off and it may be difficult to coat an appropriate amount.

On the other hand, when the angle of the hot melt nozzle 7 is 25 degrees or less, the gap between the hot melt nozzle 7 and the paper 200 is narrowed, and the pressure of the sprayed adhesive 300 is relatively high, so that stripes are displayed on the surface. phenomenon may occur.

The hot melt adhesive 300 may be copolyester (CoPES), copolyamide (CoPA), olefin (Olefin), epoxy (Epoxy), reactive polyurethane (PUR) may be used. The hot melt adhesive 300 may be selected according to physical properties such as required adhesive strength.

The paper 200 is transferred through the fourth conveyor C4. The nonwoven fabric 100 moves along the apron AP and is pre-laminated on the upper surface of the paper 200 by the roller R.

As shown in Figure 1, when the application step (S121) is completed, the pressing step (S122) is performed.

4 is a view showing the pressing step (S122) of the nonwoven fiber layer wallpaper manufacturing method (S100) of FIG. 1 .

3 and 4, the pressing step (S122) is a step of laminating the nonwoven fabric 100 on the upper surface of the paper 200 and passing it between the upper roll 8A and the lower roll 8B. The upper roll 8A and the lower roll 8B rotate in opposite directions to pass the paper 200 and the nonwoven fabric 100 therebetween.

FIG. 5 is a view showing the laminated paper 200 and the nonwoven fabric 100 in the method for manufacturing the nonwoven fiber layer wallpaper of FIG. 1 ( S100 ).

In the case of the nonwoven fabric 100 , an air gap is formed as a porous structure, unlike PVC and fabric structures. Therefore, the web manufactured through the carding step (S112) may have empty spaces inside and outside.

The empty space formed in the nonwoven fabric 100 causes a separation between the nonwoven fabric 100 and the surface of the paper 200 . The spaced space between the surface of the nonwoven fabric 100 and the paper 200 loses the bonding force between the nonwoven fabric 100 and the paper 200 , and wrinkles and tears of the paper 200 occur.

6 is a photograph showing the upper roll 8A used in the pressing step (S122) of the nonwoven fabric fiber layer wallpaper manufacturing method (S100) of FIG. 1 . FIG. 7 is a partially enlarged view of FIG. 4 .

As shown in Fig. 6, the upper roll 8A has a pipe shape. Accordingly, the upper roll 8A forms a hollow portion S therein. And a plurality of through-holes (H) are formed in the upper roll (8A). One through hole (H) per square inch of the outer surface of the upper roll (8A) is suitable, and the distance between the through holes (H) is preferably 1-3 cm.

The lower roll 8B is provided as an elastic roll made of rubber, epoxy, or silicone. The gap between the upper roll 8A and the lower roll 8B forms zero. The thickness of the paper 200 and the nonwoven fabric 100 is approximately constant. Accordingly, the paper 200 and the nonwoven fabric 100 are compressed with a constant force by the elastic recovery force of the lower roll 8B while passing between the upper roll 8A and the lower roll 8B.

7, the nonwoven fabric 100 and the paper 200 are completely in close contact between the upper roll 8A and the lower roll 8B. When the nonwoven fabric 100 is compressed, the empty space formed in the nonwoven fabric 100 is compressed.

At this time, the air in the empty space is discharged to the hollow portion (S) of the upper roll (8A) through the through hole (H). And the paper 200 and the nonwoven fabric 100 are combined by the adhesive force of the adhesive 300 over the entire area.

8 is a partial cross-sectional view of the nonwoven fibrous layer wallpaper 10 manufactured by the nonwoven fibrous layer wallpaper manufacturing method (S100) of FIG. 1 .

As shown in FIG. 8, when the laminated paper 200 and the nonwoven fabric 100 pass between the upper roll 8A and the lower roll 8B, the spaced apart between the nonwoven fabric 100 and the paper 200 surface space is completely removed.

As shown in FIG. 3 , the manufactured nonwoven fibrous layer wallpaper 10 is wound in a roll shape by a winder 9 . Although not shown, a tension bar may be installed at the front end of the winder 9 . The tension bar forms a constant tension in the nonwoven fiber layer wallpaper 10 . Therefore, wrinkles may not occur in the nonwoven fabric fiber layer wallpaper 10 during winding.

The upper roll 8A having a plurality of through-holes H may tear off some of the fibers on the surface of the nonwoven fabric 100 while compressing the nonwoven fabric 100 and the paper 200 .

As shown in FIG. 4 , a brush roll 8C may be provided on the upper side of the upper roll 8A. Although not shown in detail, the brush roll (8C) may be manufactured by making a hole in the curved portion of the cylindrical iron plate and then filling the brush filament (Brush Filament).

The brush roll 8C removes the fibers attached to the upper roll 8A through the brush filament. Therefore, the torn fibers are again buried on the surface of the nonwoven fabric 100 to prevent the occurrence of foreign matter.

According to the present invention, it is possible to provide a method for manufacturing a nonwoven fiber layer wallpaper comprising a manufacturing step of manufacturing a nonwoven fabric and a laminating step of laminating the nonwoven fabric and paper, thereby blocking the discharge of substances harmful to the human body by using an eco-friendly material. there will be

In addition, by laminating the first layer and the second layer to produce the nonwoven fabric, it is possible to provide a method for manufacturing a nonwoven fabric fibrous layer wallpaper that increases the workability of the wallpaper by increasing the thickness while reducing the weight of the wallpaper.

In the foregoing, specific embodiments of the present invention have been described and shown, but it is common knowledge in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Accordingly, such modifications or variations should not be individually understood from the technical spirit or point of view of the present invention, and modified embodiments should be said to belong to the claims of the present invention.

S100: Manufacturing method 10: Wallpaper
S110: manufacturing step 100: non-woven fabric
S111: mixing step 110: first layer
S112: carding step 120: second layer
S113: cementation step 200: paper
S120: laminating step 300: adhesive
S121: application step
S122: Compression step
1: Bale opener 8A: Upper roll
2A: 1st mixer S: hollow part
2B: second mixer H: through hole
3A: first fine opener 8B: lower roll
3B: second fine opener 8C: brush roll
3A1: transfer pipe 9: winder
3B1 : Transfer pipe AP : Apron
4A: first cardholder C1: first conveyor
4B: second carding machine C2: second conveyor
5: Dryer C3: Third Conveyor
6: Unwinder C4: Fourth conveyor
7: Nozzle R: Roll

Claims (6)

A manufacturing step of manufacturing a nonwoven fabric; and
A laminating step of laminating the nonwoven fabric and paper,
The lamination step is,
an application step of applying an adhesive to the upper surface of the paper; and
and a pressing step of stacking the nonwoven fabric on the upper surface of the paper and passing it between the upper roll and the lower roll,
The lower roll is an elastic roll made of rubber, epoxy or silicone and is compressed by the elastic recovery force of the lower roll,
A method for manufacturing a nonwoven fiber layer wallpaper, characterized in that a plurality of through holes are formed in the upper roll so that air of the nonwoven fabric is discharged into the hollow portion of the upper roll. According to claim 1,
The manufacturing step is
A mixing step of mixing the short fibers;
a carding step of making the short fibers into a first layer and a second layer using different carding machines; and
and a bonding step of stacking the first layer and the second layer and putting them in a dryer,
The method for manufacturing a nonwoven fiber layer wallpaper, characterized in that the short fibers include low-melting-point fibers that are melted by the heat of the dryer. 3. The method of claim 2,
The short fiber layer is a nonwoven fiber layer wallpaper manufacturing method, characterized in that it can be replaced or mixed with long fibers (spunbond). 3. The method of claim 2,
The fineness of the short fibers is 0.5-10D (denier),
The short fibers are
10-50 wt% of the low-melt fiber; and
50 to 90% by weight of other fibers;
The other fiber is a non-woven fiber layer wallpaper manufacturing method, characterized in that it contains one or more high-functional fibers of antibacterial, deodorizing, and flame retardant. 3. The method of claim 2,
The adhesive is provided as a hot melt adhesive,
The type of adhesive may be copolyester (CoPES), copolyamide (CoPA), olefin (Olefin), epoxy or reactive polyurethane (PUR),
The method for manufacturing a nonwoven fiber layer wallpaper, characterized in that the application amount of the adhesive is 10 to 20 g / m2. According to claim 1,
The manufacturing step is
A method of manufacturing non-woven fiber layer wallpaper, characterized in that it is possible to produce a finished product from the input of raw materials to a one-step process structure from mixing of fibers to carding, bonding, application, compression, winding and packaging.

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