KR20240114237A - System of layering sheet by selectively layering of being dissolved - Google Patents

Abstract

The present invention forms a body and includes a sheet layer unit made of a collection of fine fiber bundles; and a sticky layer unit (which is selectively placed at the bottom of the sheet layer unit through a preset area and preset depth, and is selectively partially accommodated through the supply of moisture applied to the lower surface and selectively attached to the adherend). Discloses a technical idea including a sticky layer unit.

Description

{System of layering sheet by selectively layering of being dissolved}

The present invention relates to a lamination system for adhesive sheets. More specifically, in order to selectively apply the attachment function of the adhesive sheet, the laminated area at the bottom of the sheet is selectively adjusted, the depth is selectively applied, and then the layer is dissolved. This is a technical field related to an adhesive sheet stacking system for controlling the adhesive force of an adhesive sheet by selectively applying the depth of the layer.

According to a recent report, most paper tapes advertised as eco-friendly are not recyclable.

As a result of testing 25 paper tape products with eco-friendly labels or advertisements by the Korea Consumer Agency and the Korea Environmental Industry and Technology Institute, 22 were found to be difficult to recycle.

Nevertheless, 19 products provide incorrect disposal methods, such as "recycling while attached to the box" or "recycling is possible with decomposable paper." The Korea Environmental Industry and Technology Institute has requested administrative action from the Ministry of Environment against businesses that made unfair eco-friendly advertisements and plans to monitor the status of other products.

In reality, there are many companies that make adhesives by mixing chemicals with paper, and consumers cannot tell them apart. An official from the Korea Paper Material Recycling Industry Cooperative said on the 25th, “In the process of dissolving paper with water for recycling, the adhesive ingredients made of chemicals are released into the paper. “It sticks to the product and affects the quality,” he explained. “Fine granules (glued together) are formed, which causes defects.”

Paper is a vulnerable material to use as a packaging material, and to make packaging materials, it is often coated or added with plastic vinyl. Coated paper is slow to dissolve in water, and some do not absorb water.

Accordingly, due to consumer needs and environmental issues, there is a need to develop materials that are durable and can be easily separated for use as packaging materials.

In the case of related prior patent documents, “Eco-friendly paper tape manufacturing method (Publication No. 10-2021-0004293, hereinafter referred to as patent document 1)” exists.

The purpose of the invention according to Patent Document 1 is to provide a method for manufacturing an eco-friendly paper tape with water-retaining properties that are excellent in recyclability and environmental friendliness.

In the case of Patent Document 1, after applying water-based silicone, which has mold release properties, to the entire surface of one side of the paper base paper, hot air at 130°C was sprayed at a speed of 30 m per minute to dry it, forming a water-based silicone film on the surface. A water-soluble adhesive having water-soluble properties is applied to the surface opposite to the water-based silicone film, and then dried by spraying hot air at 130°C at a speed of 30 m per minute to form a water-soluble first adhesive film protected by release paper on the surface. Also, on the surface of the silicone film, which is the opposite side of the water-soluble first adhesive film, a water-soluble second adhesive film is laminated in a band shape at regular intervals over the entire length of the base paper. It is a joint paper. As a result, it is possible to reduce environmental pollution by allowing it to be recycled as old paper when used as a packaging material for products, and when used for industrial purposes such as paper and pencil connection at paper companies, it can be connected automatically without slowing down the speed (1300M/Min). It has characteristics that allow it to exist.

In addition, “eco-friendly tape with biodegradable film and water-soluble adhesive (Registration No. 10-1146146, hereinafter referred to as Patent Document 2)” also exists.

In the case of Patent Document 2, it is about an eco-friendly tape having a biodegradable film and a water-soluble adhesive. More specifically, it is made of a biodegradable cellulose film and a water-soluble adhesive, and the surface is coated and waxed, and the adhesive surface of the tape is wound. It relates to an eco-friendly tape having a biodegradable film and water-soluble adhesive that has good mold release properties, is easily decomposed in water or soil, and can be biodegraded and composted in the natural world within a short period of time when discarded after use. In the present invention, the tape is made of a biodegradable cellulose film and a water-soluble adhesive that easily decomposes in water or soil, and the surface is coated and waxed, so that a separate release paper is not provided and when discarded after use, it is like paper in the natural world. It can be completely decomposed, so when it is used for packaging paper boxes, etc., and is recycled, it can be recycled with the tape attached without having to remove it one by one, which has the effect of greatly improving economic efficiency and environmental protection.

In addition, “Eco-friendly adhesive composition and tape manufactured using the same (Registration No. 10-1470207, hereinafter referred to as Patent Document 3)” exists.

In the case of Patent Document 3, 10 to 70 parts by weight of an adhesive base made of an acrylic adhesive as a raw material for 100 parts by weight of the solvent excluding BTX; 5 to 40 parts by weight of tefene-based adhesion increasing agent; 0.5 to 5 parts by weight of epoxy-based crosslinking agent; and 5 to 60 parts by weight of a flame retardant containing at least one selected from halogen-based flame retardants, antimony flame retardants, and phosphorus-based flame retardants.

The adhesive composition according to Patent Document 3 and the tape manufactured thereby are not only used as a tape exclusively for the automobile industry, but can also be widely applied in various electronic fields.

Although research is insufficient in the related industry, it is not based on actual research used in the field to date, so practical research in a form that can be used in the field is needed.

Publication number 10-2021-0004293 Registration number 10-1146146 Registration number 10-1470207

The attachment sheet lamination system through selective layering of the dissolved layer according to the present invention was devised to solve the conventional problems described above, and presents the following problems to be solved.

First, the presence or absence of adhesive force can be selectively generated depending on whether moisture is supplied to the lower part of the sheet layer.

Second, it allows adhesion to be developed according to the intended purpose.

Third, the characteristics of the steel for paper sheets can be adjusted depending on the purpose.

The problems to be solved by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

The attachment sheet lamination system through selective layering of the dissolved layer according to the present invention has the following means for solving the problems described above.

The attached sheet lamination system through selective layering of the dissolved layer according to the present invention includes a sheet layer unit that forms a body and is made of a collection of fine fiber bundles; and a sticky layer unit that is selectively arranged through a preset area and a preset depth at the bottom of the sheet layer unit, and is selectively partially accommodated and selectively attached to the adherend through the supply of moisture applied to the lower surface. It may be characterized as including a (sticky layer unit).

The sheet layer unit of the attached sheet lamination system through selective layering of the dissolved layer according to the present invention is mutually laminated between the fine fiber bundles, and allospace is formed between the fine fiber bundles according to mutual cohesion of the fine fiber bundles. It may be characterized by forming an (allow space).

The sticky layer unit of the attachment sheet lamination system through selective layering of the dissolved layer according to the present invention may be formed of a plurality of solid particles, and the mutual attraction of the plurality of solid particles may be selectively controlled.

The sticky layer unit of the attached sheet lamination system through selective layering of the dissolved layer according to the present invention may be characterized in that the plurality of solid particles are impregnated into the allospace and partially bound to the sheet layer unit. there is.

The sticky layer unit of the attachment sheet lamination system through selective layering of the dissolution layer according to the present invention may be characterized in that it is dissolved through moisture provided from the outside to form a mutual attraction between the plurality of solid particles.

The preset area of the attached sheet lamination system through selective layering of the dissolved layer according to the present invention is set through a virtual outline on the lower surface of the sheet layer unit, and the virtual outline can be selectively expanded and changed. It may be characterized as being set to do so.

The preset depth of the attachment sheet stacking system through selective layering of the dissolution layer according to the present invention may be individually set for each preset area on the lower surface of the sheet layer unit.

The sticky layer unit of the attachment sheet lamination system through selective layering of the dissolution layer according to the present invention may be characterized in that it is possible to selectively set a dissolution depth that dissolves into moisture through the preset depth.

The sticky layer unit of the attachment sheet lamination system through selective layering of the dissolved layer according to the present invention may be characterized in that the preset depth is selectively adjusted according to the density and concentration of the plurality of solid particles.

The preset area of the attachment sheet lamination system through selective layering of the dissolution layer according to the present invention may be characterized in that the water dissolution depth and adhesion are adjusted depending on the density and concentration of the plurality of solid particles. .

Through the preset depth of the attachment sheet lamination system through selective layering of the dissolution layer according to the present invention, the mechanical tensile strength may be adjusted to be selectively different for each preset area of the sheet layer unit.

The attachment sheet lamination system through selective layering of the dissolved layer according to the present invention with the above configuration provides the following effects.

First, the lower surface of the paper sheet layer is maintained as a normal paper material in a dry state.

Second, when the lower surface of the paper sheet layer is supplied with moisture, the adhesive force on the lower surface of the paper material appears differently depending on the degree of supplied moisture.

Third, the adhesive strength varies depending on the thickness and density of the PVOH layer on the bottom and the degree of moisture supply.

Fourth, it is possible to vary the mechanical strength characteristics of the paper sheet according to the intended setting of each area and thickness.

Fifth, it exists at the bottom of the paper sheet to additionally strengthen the strength of the paper or substrate, and when a certain temperature changes (water, heat pressure, high frequency, etc.), some of it reacts and adheres to the adhered surface and solidifies again.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

Figure 1 is a side cross-sectional view showing sticky layer units formed at different depths at the bottom of the sheet layer unit of the attached sheet lamination system through selective layering of the dissolved layer according to an embodiment of the present invention.
Figure 2 shows the formation of fine fiber bundles and allospaces on the sheet layer unit of the attached sheet stacking system through selective layering of the dissolved layer according to an embodiment of the present invention.
Figure 3 is a side cross-sectional view showing different dissolution depths formed in the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolution layer according to an embodiment of the present invention.
Figure 4 shows that different dissolution depths are formed in the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolution layer according to an embodiment of the present invention.
Figure 5 is a side cross-sectional view showing applying the thickness of the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolved layer according to an embodiment of the present invention according to a set value.
Figure 6 is a side cross-sectional view showing that the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolved layer according to an embodiment of the present invention is set differently for each region.
Figure 7 is a first bottom view showing that the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolved layer according to an embodiment of the present invention is set differently for each region.
Figure 8 is a second bottom view showing that the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolved layer according to an embodiment of the present invention is set differently for each region.
Figure 9 shows the structure of the lower surface where the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolving layer according to an embodiment of the present invention is impregnated into the sheet layer unit.
Figure 10 is a side cross-sectional view showing that the dissolution depth is selectively set in the attachment sheet stacking system through selective layering of the dissolution layer according to an embodiment of the present invention.
Figure 11 is a side cross-sectional view showing that the dissolution depth is selectively set for each preset area of the attachment sheet lamination system through selective layering of the dissolution layer according to an embodiment of the present invention.

The attachment sheet lamination system through selective layering of the dissolved layer according to the present invention can be modified in various ways and can have several embodiments. Specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the technical spirit and scope of the present invention.

Figure 1 is a side cross-sectional view showing sticky layer units formed at different depths at the bottom of the sheet layer unit of the attached sheet lamination system through selective layering of the dissolved layer according to an embodiment of the present invention. Figure 2 shows the formation of fine fiber bundles and allospaces on the sheet layer unit of the attached sheet stacking system through selective layering of the dissolved layer according to an embodiment of the present invention. Figure 3 is a side cross-sectional view showing different dissolution depths formed in the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolution layer according to an embodiment of the present invention. Figure 4 shows that different dissolution depths are formed in the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolution layer according to an embodiment of the present invention. Figure 5 is a side cross-sectional view showing applying the thickness of the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolved layer according to an embodiment of the present invention according to a set value. Figure 6 is a side cross-sectional view showing that the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolved layer according to an embodiment of the present invention is set differently for each region. Figure 7 is a first bottom view showing that the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolved layer according to an embodiment of the present invention is set differently for each region. Figure 8 is a second bottom view showing that the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolved layer according to an embodiment of the present invention is set differently for each region. Figure 9 shows the structure of the lower surface where the sticky layer unit of the attachment sheet lamination system through selective layering of the dissolving layer according to an embodiment of the present invention is impregnated into the sheet layer unit. Figure 10 is a side cross-sectional view showing that the dissolution depth is selectively set in the attachment sheet stacking system through selective layering of the dissolution layer according to an embodiment of the present invention. Figure 11 is a side cross-sectional view showing that the dissolution depth is selectively set for each preset area of the attachment sheet lamination system through selective layering of the dissolution layer according to an embodiment of the present invention.

The attached sheet lamination system through selective layering of the dissolved layer according to the present invention includes a sheet layer unit (100) and a sticky layer unit (200).

As shown in FIG. 2, the sheet layer unit 100 forms a body on a sheet structure system and is made of a set of fine fiber bundles 10.

In the case of a set of fine fiber bundles 10, it may correspond to an aggregate of vegetable fibers and may correspond to a fiber bundle containing cellulose.

In addition, in the case of the sticky layer unit 200, it is selectively placed through a preset area and a preset depth (D) at the lower part of the sheet layer unit 100, and is selectively placed through the supply of moisture applied to the lower surface. It partially dissolves in water and selectively attaches to the adherend.

The sticky layer unit 200 is provided at the lower part of the sheet layer unit 100. The sticky layer unit 200 may be made of PVOH (polyvinyl alcohol, PVA, PVAI).

In the case of PVOH, it has the characteristics of a water-soluble plastic resin and has adhesive performance and film-forming ability.

The preset area is provided in the sheet layer unit 100 and can be said to be an area in which the sticky layer unit 200 is provided.

In the case of a preset area, it cannot be confirmed with the naked eye, but may be confirmed with the naked eye if the sticky layer unit 200 is provided.

The fact that the sticky layer unit 200 is selectively arranged means that it can be arranged by region in the sheet layer unit 100, which may mean that it is arranged according to a preset region.

In the case of partial dissolution in water, the sticky layer unit 200 is dissolved in water depending on the supply of moisture, and partial dissolution in water will be described later.

The sticky layer unit 200 is partially dissolved, and as it is partially dissolved, it has adhesion (or adhesive force) to attach to the adherend.

Accordingly, the adhesion force attached to the adherend may be adjusted differently depending on the degree to which the sticky layer unit 200 is dissolved.

The sheet layer unit 100 of the attached sheet lamination system through selective layering of the dissolved layer according to the present invention forms a mutual lamination between the fine fiber bundles 10, and the fine fiber bundles 10 are formed by mutual aggregation. An allow space (20) is formed between (10).

As shown in Figure 2, in the case of the fine fiber bundles 10, they are mutually stacked, and the neighboring fine fiber bundles 10 form cohesion due to mutual attraction, so that there is a gap between the fine fiber bundles 10. An allow space 20 can be formed.

The allow space 20 may correspond to an empty space between the fine fiber bundles 10.

In the case of the sheet layer unit 100, the width of the allow space 20 is formed depending on the density of the fine fiber bundles 10 and the mutual attraction between the fine fiber bundles 10.

The sheet layer unit 100 formed of the fine fiber bundle 10 may have a lower mutual attraction of the fine fiber bundle 10 due to the water molecules relative to moisture, and the water molecules are impregnated into the space 20 and the fine fiber bundle 100 is formed. The fiber bundle 10 may be provided in a form that is loosely released and later dissolved by moisture.

The sticky layer unit 200 of the attachment sheet lamination system through selective layering of the dissolved layer according to the present invention is formed of a plurality of solid particles 30, and the mutual attraction of the plurality of solid particles 30 is selectively controlled. .

The sticky layer unit 200 is composed of a set of solid particles 30. The solid particles 30 are provided in a hardened form at the lower part of the sheet layer unit 100.

In the case of the sticky layer unit 200 provided in a hardened form to the sheet layer unit 100, additional strength is reinforced at the bottom of the sheet layer unit 100.

In the case of the sticky layer unit 200, when a certain temperature changes, a portion may react and adhere to the adhered surface, impregnate the sheet layer unit 100, and then solidify again.

That is, in the case of the solid particles 30, they have a solid form but can be uncured by a solvent such as moisture, and when the uncured form is maintained, adhesive force can be formed.

The sticky layer unit 200 of the attached sheet lamination system through selective layering of the dissolved layer according to the present invention is impregnated with a plurality of solid particles 30 in the allospace 20, thereby partially attaching the sheet layer unit 100 to the sheet layer unit 100. is bound up with

As shown in FIG. 6, in the case of a plurality of solid particles 30, they are impregnated into the allospace 20 of the sheet layer unit 100, and the impregnated solid particles 30 are connected to the sheet layer unit 100. It is bound between the sticky layer units 200.

As shown in FIG. 9, the allow space 20 forms a space of the allow space 20 so that the solid particles 30 are impregnated, and the impregnated solid particles 30 are of the fine fiber bundle 10. The impregnated state is maintained due to mutual attraction.

The sticky layer unit 200 of the attachment sheet lamination system through selective layering of the dissolved layer according to the present invention is dissolved through moisture provided from the outside, forming mutual attraction between the plurality of solid particles 30.

In the case of the sticky layer unit 200, when moisture is provided from the outside, it is dissolved by the moisture, and in the case of the plurality of dissolved solid particles 30, adhesive force is formed through mutual attraction.

In the case of the adhesive force provided by the sticky layer unit 200, for example, it adheres to an adherend due to the mutual attraction of a plurality of dissolved solid particles 31, and the adhesive force is achieved by the mutual attraction of the plurality of solid particles 30. This is what we provide.

The principle of adhesion due to this mutual attraction shall be subject to conventional experimental results and experimental research results. (For example, see https://www.kgk-tape.co.jp/korea/basicoftape.pdf)

The preset area of the sheet lamination system attached through selective layering of the dissolved layer according to the present invention is set through a virtual outline on the lower surface of the sheet layer unit 100, and the virtual outline can be selectively expanded and changed. It is set to do so.

For example, as shown in FIGS. 6 to 8, a virtual outline can be set for each area, and it is desirable to allow its size and width to be set.

In the case of the preset area, as described above, it corresponds to the area in which the sticky layer unit 200 provided to the sheet layer unit 100 will be provided, and this preset area forms a virtual outline.

The virtual outline corresponds to a virtual line found in a digital area that cannot be seen with the naked eye.

This virtual line can be changed to be expandable, and in the case of expansion, it corresponds to being formed in the digital domain.

The preset depth (D) of the attachment sheet stacking system through selective layering of the dissolved layer according to the present invention can be individually set for each preset area on the lower surface of the sheet layer unit 100.

As shown in FIGS. 2 and 5, the preset depth D of the sticky layer unit 200 formed on the sheet layer unit 100 can be set.

For example, the preset depth D may be determined according to the density and concentration of the plurality of solid particles 30.

The sticky layer unit 200 of the attachment sheet lamination system through selective layering of the dissolution layer according to the present invention allows the dissolution depth (T), which dissolves into moisture, to be selectively set through a preset depth (D).

As shown in FIGS. 3 and 4, a plurality of solid particles 30 formed within a preset depth (D) are dissolved with moisture to set a dissolution depth (T).

The dissolution depth (T) corresponds to the depth at which water dissolves the plurality of solid particles 30 on the sticky layer unit 200.

In addition, the dissolution depth (T) may be set differently depending on the degree to which moisture is provided.

The dissolution depth (T) refers to the depth at which the plurality of solid particles 30 are dissolved, and the dissolution depth is adjusted according to the dissolution depth.

In the sticky layer unit 200 of the attachment sheet lamination system through selective layering of the dissolved layer according to the present invention, the preset depth (D) is selectively adjusted according to the density and concentration of the plurality of solid particles 30.

In addition, in the preset area, the water dissolution depth (T) and adhesive force are adjusted according to the density and concentration of the plurality of solid particles 30.

As shown in FIG. 11, the density and concentration of the plurality of solid particles 30 may be set differently depending on the preset area, and the dissolution depth (T) may be determined according to the density and concentration of the plurality of solid particles 30. ) is formed.

For example, as shown in FIG. 11, in the case of zone #1 to zone #4, the dissolution depth (T) is set differently, which means that the dissolution depth (T) is different depending on the density of the plurality of solid particles 30. It appears.

In the case of the partial water dissolution mentioned above, this means that water dissolution is selectively formed depending on the density or moisture of the plurality of solid particles 30.

In addition, the mechanical tensile strength is selectively varied for each preset area of the sheet layer unit 100 through the preset depth (D) of the attachment sheet lamination system through selective layering of the dissolution layer according to the present invention.

The sticky layer unit 200 can selectively set the mechanical strength of the top paper torn at the bottom of the sheet layer unit 100 differently for each region according to the intended direction.

The sticky layer unit 200 may provide additional strength at the bottom of the sheet layer unit 100 (e.g., reinforce the strength of the base material), and may provide additional strength from the bottom to the top of the sheet layer unit 100 through strength reinforcement. Strength can be strengthened.

The sticky layer unit 200 may be made of one or more materials such as water-soluble film, such as polyvinyl alcohol, PVOH, and PVA.

Polyvinyl alcohol, such as PVOH, is a crystal-clear, water-soluble thermoplastic resin derived from polyvinyl acetate through partial or complete hydroxylation.

The degree of hydroxylation determines the physical, chemical and mechanical properties. The smaller the number of residual acetate groups, the lower the water solubility and crystallinity, but the higher the glass transition temperature. The degree of hydroxylation acts as a plasticizer and affects the mechanical and physical properties and maximum moisture absorption of the polymer. As moisture absorption increases, tensile strength, elastic modulus, and hardness decrease, while impact resistance and elongation at break increase significantly. In other words, dried PVOH is a hard, crystalline thermoplastic with a high Tg and tensile strength of about 375K, but wet PVOH is slightly soft and flexible, and its tensile strength is significantly lowered depending on the amount of moisture absorbed. Because PVOH is very hydrophilic in water, it has excellent solubility in water and is highly resistant to many organic solvents such as hydrocarbons, mineral oils, ethers, esters, and ketones. Films made from polyvinyl alcohol have excellent heat sealing properties and very good adhesion to cellulose and other hydrophilic surfaces. It also has excellent barrier properties against gases such as oxygen, nitrogen and carbon dioxide. PVOH films are biocompatible, biodegradable and non-toxic, making them particularly suitable for packaging food, pharmaceuticals and cosmetics. Due to its water solubility, PVA is crosslinked when structural stability and water insolubility are required, and the degree of crosslinking determines the mechanical and physical properties of the polymer as well as the amount of water absorption, permeability, and biodegradation rate. Mechanical and physical properties can be altered by blending with other compounds or copolymerizing with other monomers, which significantly changes water absorption/swelling and decomposition rates. One example is a blend of PVOH and ethylene-vinyl alcohol copolymer, or EVOH. Water-soluble films made from polyvinyl alcohol are available in various grades and offer different solubilities in cold and hot water to meet different requirements. Major manufacturers of PVOH resins and films include Aicello (Solublon®), Sckisui (Selvol TM), Kuraray (Poval TM), Nippon Gohsei (Hi-Selon), and Soltec. PVOH is FDA approved for close contact with food. PVA film is completely biocompatible, non-toxic and PVOH waste produces no toxic or harmful by-products when incinerated or digested.

The scope of rights of the present invention is determined by the matters stated in the patent claims, and parentheses used in the patent claims are not used for selective limitation, but are used for clear elements, and descriptions within parentheses are also interpreted as essential elements. It has to be.

10: Bundle of fine fibers
20: Allow Space
30: solid particles
31: Dissolved solid particles
100: Sheet layer unit
200: Sticky layer unit

Claims (11)

A sheet layer unit consisting of a collection of fine fiber bundles; and
It is selectively disposed through a preset area and a preset depth in the lower part of the sheet layer unit, and is selectively partially accommodated through the supply of moisture applied to some of the lower surface or sides and selectively attached to the adherend. A system for attaching sheets through selective layering of dissolvable layers, comprising a sticky layer unit.
The method of claim 1, wherein the sheet layer unit,
Lamination of attachment sheets through selective layering of a dissolved layer, characterized in that the fine fiber bundles are mutually laminated and an allow space is formed between the fine fiber bundles according to mutual aggregation of the fine fiber bundles. system.
The method of claim 2, wherein the sticky layer unit:
An attachment sheet stacking system through selective layering of a dissolved layer, formed of a plurality of solid particles, and characterized in that the mutual attraction of the plurality of solid particles is selectively controlled.
The method of claim 3, wherein the sticky layer unit,
Attachment sheet stacking system through selective layering of a dissolved layer, characterized in that the plurality of solid particles are selectively impregnated, bonded, or bound to the allowance space and partially bound to the sheet layer unit.
The method of claim 1, wherein the sticky layer unit:
An attachment sheet stacking system through selective layering of a dissolved layer, characterized in that it is selectively dissolved through moisture provided from the outside and adjusts the mutual attraction between the plurality of solid particles.
The method of claim 1, wherein the preset area is:
An area is set on the lower surface of the sheet layer unit through a virtual outline, and the virtual outline is set to be selectively expandable and changeable.
The method of claim 2, wherein the preset depth is:
An attachment sheet stacking system through selective layering of a dissolvable layer, characterized in that it can be individually set for each preset area on the lower surface of the sheet layer unit.
The method of claim 7, wherein the sticky layer unit,
An attachment sheet stacking system through selective layering of a dissolving layer, characterized in that it is possible to selectively set a dissolution depth that dissolves into moisture through the preset depth.
The method of claim 8, wherein the sticky layer unit,
Attachment sheet stacking system through selective layering of a dissolved layer, characterized in that the preset depth is selectively adjusted according to the density, concentration, or temperature of the plurality of solid particles.
The method of claim 4, wherein the preset area is:
Attachment sheet lamination system through selective layering of a dissolving layer, characterized in that the water-soluble dissolution depth and adhesive force are adjusted according to the density, concentration, temperature, or hydrophilicity of the plurality of solid particles.
The method of claim 10, wherein the sticky layer unit,
Attachment through selective layering of the dissolution layer, which is made of at least one material of polyvinyl alcohol, PVOH or PVA series, or hydrophilic film, and is characterized in that the dissolution depth and adhesion can be adjusted through the supply of moisture. Sheet stacking system.