KR102694910B1 - System of layering sheet by selectively layering of being dissolved - Google Patents

Abstract

The present invention discloses a technical idea including a sheet layer unit forming a body and composed of a collection of microfiber bundles; and a sticky layer unit selectively positioned through a preset region and preset depth at the lower portion of the sheet layer unit, and selectively partially accepting moisture supplied to the lower surface and selectively attaching to an adherend.

Description

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

The present invention relates to a lamination system for an adhesive sheet, and more specifically, to a technical field of an adhesive sheet lamination system for selectively applying the adhesive function of an adhesive sheet by selectively adjusting an area laminated on the lower part of a sheet, selectively applying the depth, and then selectively applying the depth of a dissolution layer of the corresponding layer, thereby controlling the adhesive force of the adhesive sheet.

A recent report found that most paper tapes advertised as eco-friendly are not recyclable.

The Korea Consumer Agency and the Korea Environmental Industry & Technology Institute tested 25 paper tape products that were labeled or advertised as eco-friendly and found that 22 of them were difficult to recycle.

However, 19 products are providing incorrect disposal methods, such as “recycling while still attached to the box” or “recycling as decomposable paper.” The Korea Environmental Industry & Technology Institute has requested the Ministry of Environment to take administrative action against businesses that have 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 into paper, and consumers cannot tell the difference. An official from the Korea Paper Raw Material Recycling Cooperative explained on the 25th, “In the process of dissolving paper in water for recycling, the chemical adhesive component sticks to the paper and affects the quality,” and “This causes defects because fine granules (of adhesive clumped together) are created.”

Paper is a vulnerable material to use as packaging material, and in order to make packaging material, it is often coated or covered with plastic vinyl. However, coated paper is slow to dissolve in water, and some of it does not absorb water at all.

Accordingly, due to consumer needs and environmental issues, there is a need to develop materials that are durable enough to be used as packaging materials, but also easily separable.

In the case of related prior art patent documents, there is “Method for Manufacturing Eco-Friendly Paper Tape (Publication No. 10-2021-0004293, hereinafter referred to as Patent Document 1)”

The purpose of the invention according to patent document 1 is to provide a method for manufacturing an environmentally friendly paper tape having excellent water solubility properties and recyclability and environmental friendliness.

In the case of patent document 1, after applying a water-based silicone that imparts release properties to the entire surface of a paper-based base paper, a hot air of 130°C is sprayed at a speed of 30 m/min to dry the surface, thereby forming a water-based silicone film on the surface, and a water-soluble adhesive having water-soluble properties is applied to the surface opposite to the water-based silicone film, and by spraying a hot air of 130°C at a speed of 30 m/min to dry the surface, a water-soluble first adhesive film protected by a release paper is formed on the surface, and further, on the surface of the silicone film, which is the surface opposite to the first water-soluble adhesive film, a water-soluble second adhesive film is laminated in the form of a band at a set interval over the entire length of the base paper. This allows for recycling of old paper when used as packaging material for products, thereby reducing environmental pollution, and has the characteristic of enabling automatic connection without reduction in speed (1300 M/Min) for industrial use, such as connecting paper pens in paper manufacturing companies.

In addition, there is also an “environmentally friendly tape having a biodegradable film and a water-soluble adhesive (Registration No. 10-1146146, hereinafter referred to as Patent Document 2).”

In the case of Patent Document 2, it relates to an eco-friendly tape having a biodegradable film and a water-soluble adhesive, and more specifically, it relates to an eco-friendly tape having a biodegradable film and a water-soluble adhesive, which is composed of a biodegradable cellulose film and a water-soluble adhesive, and its surface is coated and waxed so that the adhesive surface of the tape to be wound is well released, and it decomposes well in water or soil, so that it can be biodegraded and composted in nature within a short period of time when discarded after use. The present invention relates to an eco-friendly tape having a biodegradable cellulose film and a water-soluble adhesive that decomposes well in water or soil, and its surface is coated and waxed so that it can be completely decomposed like paper in nature when discarded after use without providing a separate release paper, so that when it is used in a packaging paper box, etc. to be recycled, the tape can be recycled in an attached state without having to remove it one by one, thereby greatly obtaining economic efficiency and environmental protection effects.

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

In the case of patent document 3, an eco-friendly adhesive composition is provided, which comprises, for 100 parts by weight of a solvent excluding BTX, 10 to 70 parts by weight of an adhesive base using an acrylic adhesive as a raw material; 5 to 40 parts by weight of a teflon-based adhesion enhancer; 0.5 to 5 parts by weight of an epoxy-based crosslinking agent; and 5 to 60 parts by weight of a flame retardant including at least one selected from a halogen-based flame retardant, an antimony flame retardant, and a phosphorus-based flame retardant.

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

Although research is being conducted in the relevant industry, it is not based on practical research that can be used in the field, and practical research that can be used in the field is needed.

Publication number 10-2021-0004293 Registration No. 10-1146146 Registration No. 10-1470207

The adhesive sheet lamination system through selective layering of a melting layer according to the present invention has been devised to solve the above-mentioned conventional problems, and presents the following tasks to be solved.

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

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

Third, the lecture characteristics on paper sheets can be adjusted according to 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 adhesive sheet lamination system through selective layering of a melting layer according to the present invention has the following problem-solving means to solve the above-mentioned problem.

The system for laminating adhesive sheets through selective layering of a melting layer according to the present invention may be characterized by including a sheet layer unit forming a body and comprising a collection of microfiber bundles; and a sticky layer unit selectively arranged through a preset region and preset depth at the lower portion of the sheet layer unit and selectively partially accepting moisture applied to the lower surface to selectively attach to an adherend.

The sheet layer unit of the adhesive sheet lamination system through selective layering of the melting layer according to the present invention may be characterized in that it forms mutual lamination between the microfiber bundles and forms an allow space between the microfiber bundles due to mutual cohesion of the microfiber bundles.

The sticky layer unit of the adhesive sheet lamination system through selective layering of a melting layer according to the present invention may be characterized in that it is formed of a plurality of solid particles, and the mutual attraction of the plurality of solid particles is selectively controlled.

The sticky layer unit of the adhesive sheet lamination system through selective layering of a melting layer according to the present invention may be characterized in that the plurality of solid particles are impregnated within the allowable space and partially bound to the sheet layer unit.

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

The above preset region of the adhesive sheet lamination system through selective layering of the melting layer according to the present invention may be characterized in that the region is set through a virtual outline on the lower surface of the sheet layer unit, and the virtual outline is set to be selectively expandable.

The preset depth of the adhesive sheet lamination system through selective layering of the melting layer according to the present invention may be individually settable for each preset area on the lower surface of the sheet layer unit.

The sticky layer unit of the adhesive 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 the dissolution depth at which the dissolution is performed with moisture through the preset depth.

The sticky layer unit of the adhesive sheet lamination system through selective layering of the melting 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 above preset area of the adhesive sheet lamination system through selective layering of the dissolution layer according to the present invention may be characterized in that the dissolution depth and adhesive force of the water dissolution are controlled according to the density and concentration of the plurality of solid particles.

The present invention can be characterized in that the mechanical tensile strength is selectively adjusted to be different for each preset area of the sheet layer unit through the preset depth of the adhesive sheet lamination system via selective layering of the melting layer.

The adhesive sheet lamination system through selective layering of the melting layer according to the present invention having the above configuration provides the following effects.

First, the underside of the paper sheet layer is kept as a normal paper material when dry.

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

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

Fourth, the mechanical strength characteristics of the paper sheet can be varied depending on the intended settings of the area and thickness.

Fifth, it exists at the bottom of the paper sheet and additionally strengthens the strength of the paper or substrate, and when there is a change in temperature (such as when wet, when pressure is applied with heat, or when high frequency is applied), some of it reacts and attaches to the adherend 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.

FIG. 1 is a cross-sectional side view illustrating a sticky layer unit formed at different depths at the bottom of a sheet layer unit of an adhesive sheet lamination system through selective layering of a melting layer according to one embodiment of the present invention.
FIG. 2 illustrates the formation of microfiber bundles and an arrow space on a sheet layer unit of an adhesive sheet lamination system through selective layering of a melting layer according to one embodiment of the present invention.
FIG. 3 is a cross-sectional side view illustrating different melting depths formed in a sticky layer unit of an adhesive sheet lamination system through selective layering of a melting layer according to one embodiment of the present invention.
FIG. 4 illustrates that the melting depths are formed differently in the sticky layer unit of the adhesive sheet lamination system through selective layering of the melting layer according to one embodiment of the present invention.
FIG. 5 is a cross-sectional side view illustrating that the thickness of the sticky layer unit of the adhesive sheet lamination system through selective layering of the melting layer according to one embodiment of the present invention is applied differently depending on a set value.
FIG. 6 is a cross-sectional side view illustrating that the sticky layer unit of the adhesive sheet lamination system through selective layering of the melting layer according to one embodiment of the present invention is set differently for each region.
FIG. 7 is a first bottom view illustrating that the sticky layer unit of the adhesive sheet lamination system through selective layering of the melting layer according to one embodiment of the present invention is set differently for each region.
FIG. 8 is a second bottom view illustrating that the sticky layer unit of the adhesive sheet lamination system through selective layering of the melting layer according to one embodiment of the present invention is set differently for each region.
FIG. 9 illustrates the structure of the lower surface of a sticky layer unit impregnated into a sheet layer unit of an adhesive sheet lamination system through selective layering of a melting layer according to one embodiment of the present invention.
FIG. 10 is a cross-sectional side view illustrating a system for laminating adhesive sheets through selective layering of a melting layer according to one embodiment of the present invention, wherein the melting depth is selectively set.
FIG. 11 is a cross-sectional side view illustrating a method of selectively setting a melting depth for each preset area of an adhesive sheet lamination system through selective layering of a melting layer according to one embodiment of the present invention.

The adhesive sheet lamination system through selective layering of a melting layer according to the present invention can have various modifications and various embodiments, and specific embodiments are 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, but should be understood to include all modifications, equivalents, or substitutes included in the technical spirit and technical scope of the present invention.

FIG. 1 is a side cross-sectional view illustrating a sticky layer unit formed at different depths below a sheet layer unit of an adhesive sheet lamination system through selective layering of a dissolution layer according to an embodiment of the present invention. FIG. 2 is a side cross-sectional view illustrating a microfiber bundle and an allow space formed on a sheet layer unit of an adhesive sheet lamination system through selective layering of a dissolution layer according to an embodiment of the present invention. FIG. 3 is a side cross-sectional view illustrating a sticky layer unit of an adhesive sheet lamination system through selective layering of a dissolution layer according to an embodiment of the present invention in which dissolution depths are formed differently. FIG. 4 is a side cross-sectional view illustrating a sticky layer unit of an adhesive sheet lamination system through selective layering of a dissolution layer according to an embodiment of the present invention in which dissolution depths are formed differently. FIG. 5 is a side cross-sectional view illustrating a thickness of a sticky layer unit of an adhesive sheet lamination system through selective layering of a dissolution layer according to an embodiment of the present invention that is applied differently depending on a set value. FIG. 6 is a side cross-sectional view illustrating a sticky layer unit of an adhesive sheet lamination system through selective layering of a dissolution layer according to an embodiment of the present invention, wherein the sticky layer unit is set differently for each region. FIG. 7 is a first bottom view illustrating a sticky layer unit of an adhesive sheet lamination system through selective layering of a dissolution layer according to an embodiment of the present invention, wherein the sticky layer unit is set differently for each region. FIG. 8 is a second bottom view illustrating a sticky layer unit of an adhesive sheet lamination system through selective layering of a dissolution layer according to an embodiment of the present invention, wherein the sticky layer unit is set differently for each region. FIG. 9 is a view illustrating a structure of a lower surface on which a sheet layer unit is impregnated with a sticky layer unit of an adhesive sheet lamination system through selective layering of a dissolution layer according to an embodiment of the present invention. FIG. 10 is a side cross-sectional view illustrating a dissolution depth being selectively set for each preset region in an adhesive sheet lamination system through selective layering of a dissolution layer according to an embodiment of the present invention. FIG. 11 is a side cross-sectional view illustrating a dissolution depth being selectively set for each preset region in an adhesive sheet lamination system through selective layering of a dissolution layer according to an embodiment of the present invention.

The adhesive sheet lamination system through selective layering of a melting layer according to the present invention comprises a sheet layer unit (100) and a sticky layer unit (200).

As shown in Fig. 2, in the case of the sheet layer unit (100), the body is formed on the sheet structure system and is composed of a collection of microfiber bundles (10).

In the case of a collection of fine fiber bundles (10), it may correspond to a collection 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 preset depth (D) at the bottom of the sheet layer unit (100), and is selectively partially accepted and selectively attached to the adherend through the supply of moisture applied to the lower surface.

The sticky layer unit (200) is provided at the bottom of the sheet layer unit (100), and the sticky layer unit (200) can be composed of PVOH (polyvinyl alcohol, PVA, PVAI).

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

The preset area refers to an area provided to the sheet layer unit (100) and can be referred to as an area provided with the sticky layer unit (200).

For the preset area, it is not visible to the naked eye, but if a sticky layer unit (200) is provided, it can be visible to the naked eye.

The optional placement of the sticky layer unit (200) may mean that the sheet layer unit (100) can be placed by region, and may be placed according to a preset region.

In the case of partial solution, the sticky layer unit (200) is solution-dissolved according to the supply of moisture, and partial solution will be described later.

The sticky layer unit (200) is partially dissolved and, as it is partially dissolved, has an adhesive force (or bonding force) that allows it to be attached to an adherend.

Accordingly, the adhesive strength attached to the adherend can be adjusted differently depending on the degree to which the sticky layer unit (200) is accepted.

The sheet layer unit (100) of the adhesive sheet lamination system through selective layering of the melting layer according to the present invention forms mutual lamination between the microfiber bundles (10) and forms an allow space (20) between the microfiber bundles (10) according to the mutual cohesion of the microfiber bundles (10).

As shown in Fig. 2, in the case of microfiber bundles (10), they are mutually stacked and neighboring microfiber bundles (10) form agglomeration due to mutual attraction, so that an empty space (20) can be formed between the microfiber bundles (10).

The empty space (20) may correspond to an empty space between the microfiber bundles (10).

In the case of the sheet layer unit (100), the width of the space of the allowable space (20) is formed according to the density of the microfiber bundles (10) and the mutual attraction between the microfiber bundles (10).

The sheet layer unit (100) formed by the fine fiber bundle (10) can be provided in a form in which the mutual attraction of the fine fiber bundle (10) can be lowered by water molecules in response to moisture, and the water molecules are impregnated into the space of the allover space (20) and the fine fiber bundle (10) is loosely released and then dissolved by moisture.

The sticky layer unit (200) of the adhesive sheet lamination system through selective layering of the melting 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 collection of solid particles (30), and in the case of the solid particles (30), they are provided in a hardened form at the bottom of the sheet layer unit (100).

In the case of a sticky layer unit (200) provided in a hardened form to a 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, some of it may react and be attached to the adherend surface, impregnated into the sheet layer unit (100), and then solidified again.

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

The sticky layer unit (200) of the adhesive sheet lamination system through selective layering of the melting layer according to the present invention is partially bound to the sheet layer unit (100) by impregnating a plurality of solid particles (30) within the allowable space (20).

As illustrated in FIG. 6, in the case of a plurality of solid particles (30), they are impregnated into the empty space (20) of the sheet layer unit (100), and the impregnated solid particles (30) are bound between the sheet layer unit (100) and the sticky layer unit (200).

As shown in Fig. 9, the arrow space (20) forms a space of the arrow space (20) so that the solid particles (30) are impregnated, and the impregnated solid particles (30) maintain the impregnated state due to the mutual attraction of the microfiber bundles (10).

The sticky layer unit (200) of the adhesive sheet lamination system through selective layering of the melting layer according to the present invention is dissolved through moisture provided from the outside, thereby forming mutual attraction between a 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 a plurality of dissolved solid particles (30), adhesive force is formed through mutual attraction.

In the case of the adhesive strength provided by the sticky layer unit (200), for example, the adhesive strength is provided by the mutual attraction between the plurality of dissolved solid particles (31) and the particles are attached to the adherend due to the mutual attraction between the plurality of solid particles (30).

The adhesive principle by mutual attraction is based on previous experimental results and experimental research results. (For example, see https://www.kgk-tape.co.jp/korea/basicoftape.pdf)

The preset area of the adhesive sheet lamination system through selective layering of the melting layer according to the present invention is set as an area through a virtual outline on the lower surface of the sheet layer unit (100), and the virtual outline is set to be selectively expandable.

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

In the case of a preset area, as described above, it corresponds to an area where a sticky layer unit (200) provided to a sheet layer unit (100) is to be provided, and this preset area forms a virtual outline.

A virtual outline is a virtual line that can be seen in the digital realm that cannot be seen with the naked eye.

These virtual lines can be changed to be extensible, and in the case of expansion, correspond to those formed in the digital realm.

The preset depth (D) of the adhesive sheet lamination system through selective layering of the melting 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 FIG. 2 and FIG. 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) can be determined based on the density and concentration of a plurality of solid particles (30).

The sticky layer unit (200) of the adhesive sheet lamination system through selective layering of the melting layer according to the present invention enables selective setting of the melting depth (T) at which the melting is performed with moisture 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 in water to set a dissolution depth (T).

In the case of the dissolution depth (T), it corresponds to the depth at which a plurality of solid particles (30) are dissolved in water on the sticky layer unit (200).

Additionally, the melting depth (T) may be set differently depending on the degree of moisture provided.

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

The sticky layer unit (200) of the adhesive sheet lamination system through selective layering of the melting layer according to the present invention selectively adjusts the preset depth (D) according to the density and concentration of a plurality of solid particles (30).

In addition, the preset area has a water-dissolving depth (T) and adhesive strength that are controlled according to the density and concentration of a plurality of solid particles (30).

As illustrated in Fig. 11, the density and concentration of a plurality of solid particles (30) can be configured to be set differently according to a preset area, and a dissolution depth (T) is formed according to the density and concentration of the plurality of solid particles (30).

For example, as illustrated in Fig. 11, for zones #1 to #4, the dissolution depth (T) is set differently, which means that the dissolution depth (T) appears differently depending on the density of a plurality of solid particles (30).

In the case of partial water solubility mentioned above, it means that water solubility is selectively formed depending on the density or moisture of a 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 adhesive sheet lamination system through selective layering of the melting layer according to the present invention.

The sticky layer unit (200) can selectively set the mechanical strength of the upper layer torn from the lower part of the sheet layer unit (100) in a different direction for each region.

The sticky layer unit (200) can reinforce additional strength at the bottom of the sheet layer unit (100) (e.g., reinforce the strength of the substrate), and through the strength reinforcement, the strength from the bottom to the top of the sheet layer unit (100) can be reinforced.

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

Polyvinyl alcohols such as PVOH are crystal clear, water-soluble thermoplastic resins derived from polyvinyl acetate through partial or complete hydroxylation.

The degree of hydroxylation determines the physical, chemical and mechanical properties, and the lower the number of residual acetate groups, the lower the solubility and crystallinity, but the higher the glass transition temperature. The degree of hydroxylation acts as a plasticizer, affecting the mechanical and physical properties of the polymer and the maximum water absorption. As water absorption increases, the tensile strength, elastic modulus and hardness decrease, while the impact resistance and elongation at break increase significantly. That is, dry PVOH is a hard, crystalline thermoplastic with a high Tg of about 375 K and tensile strength, but wet PVOH is slightly soft and flexible, and exhibits characteristics in which the tensile strength decreases significantly with the amount of water absorbed. PVOH is very hydrophilic, so it has excellent solubility in water and high resistance to many organic solvents such as hydrocarbons, mineral oils, ethers, esters and ketones. Films made from polyvinyl alcohol have excellent heat-sealing properties and excellent 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 food, pharmaceutical and cosmetic packaging. Due to its water solubility, PVA is crosslinked when structural stability and water insolubility are required, and the degree of crosslinking determines the amount of water absorption, permeability and biodegradability as well as the mechanical and physical properties of the polymer. The mechanical and physical properties can be altered by blending it with other compounds or by copolymerizing it with other monomers, which significantly changes the water absorption/swelling and degradation rates. One example is a blend of PVOH with ethylene-vinyl alcohol copolymer or EVOH. Water-soluble films made from polyvinyl alcohol are available in various grades and offer different solubility 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 films are completely biocompatible and non-toxic, and PVOH waste does not produce toxic or harmful byproducts when incinerated or digested.

The scope of the rights of the present invention is determined by the matters described in the claims, and the parentheses used in the claims are not described for optional limitation, but are used to indicate clear elements, and the description within the parentheses should also be interpreted as essential elements.

10: Microfiber bundles
20: Allow Space
30: Solid particles
31: Dissolved solid particles
100: Sheet Layer Unit
200: Sticky Layer Unit

Claims (11)

A sheet layer unit comprising a collection of fine fiber bundles; and
A sticky layer unit is selectively placed through a preset area and preset depth in the lower part of the sheet layer unit, and selectively partially receives moisture supplied to a part of the lower surface or side surface, thereby selectively attaching to the adherend.
The above sheet layer unit,
The above microfiber bundles are mutually laminated, and allow space is formed between the microfiber bundles according to the mutual cohesion of the microfiber bundles.
The above sticky layer unit,
It is formed by a plurality of solid particles, and the mutual attraction of the plurality of solid particles is selectively controlled.
The above plurality of solid particles are selectively impregnated, combined or bound into the above-mentioned empty space, and are partially bound to the above-mentioned sheet layer unit,
By selectively dissolving through moisture provided from the outside, the mutual attraction between the plurality of solid particles is adjusted,
The above preset depth is,
The lower surface of the above sheet layer unit can be individually set for each preset area,
The above sticky layer unit,
The melting depth that dissolves into water can be selectively set through the preset depth above.
The preset depth is selectively adjusted according to the density, concentration or temperature of the plurality of solid particles,
The above preset areas are,
An adhesive sheet lamination system through selective layering of a dissolution layer, characterized in that the dissolution depth and adhesive strength of the water-dissolving layer are controlled according to the density, concentration, temperature or hydrophilicity of the plurality of solid particles.
delete delete delete delete In the first paragraph, the preset area is,
An attachment sheet lamination system through selective layering of a melting layer, characterized in that a region is set through a virtual outline on the lower surface of the sheet layer unit, and the virtual outline is set to be selectively expandable.
delete delete delete delete In the first paragraph, the sticky layer unit,
An adhesive sheet lamination system through selective layering of a dissolution layer, characterized in that the dissolution depth and adhesive strength can be controlled through the supply of moisture, and made of at least one material selected from the group consisting of polyvinyl alcohol, PVOH or PVA series, or hydrophilic films.