KR20130141043A

KR20130141043A - Waterproof sheet with double adhesive parts on the upper surface and the downsurface

Info

Publication number: KR20130141043A
Application number: KR1020120064122A
Authority: KR
Inventors: 강용석
Original assignee: 아진레이어 주식회사; 강용석
Priority date: 2012-06-15
Filing date: 2012-06-15
Publication date: 2013-12-26

Abstract

The present invention relates to a waterproof sheet having a double adhesive portion, which is formed on one end side of the center material layer and the center material layer in which the asphalt compound is impregnated, and a start lap which is an adhesive layer formed on the upper surface in the horizontal direction; And an upper side lap which is an adhesive layer formed on an upper side of the center material layer and a lower side lap which is an adhesive layer formed under the other side of the center material layer. It is related with the waterproof sheet provided with the double adhesive part.
According to the present invention, when two or more waterproof sheets are successively installed, the upper side wrap formed on the waterproof sheet and the lower side wrap formed on the waterproof sheet overlapped with the waterproof sheet overlap each other, and have the same physical properties. The adhesive strength of each other eliminates the need for separate adhesives, and provides a good adhesive strength after a certain time at room temperature without applying heat, and maintains the original adhesiveness without curing even when the temperature is low. have. In addition, there is an effect of reducing the VOC emissions and labor costs by not using excessive solvent-type coating film.

Description

Waterproof sheet with double adhesive parts on the upper surface and the downsurface.

The present invention relates to an asphalt waterproof sheet having a double adhesive portion, and includes a center material layer impregnated with an asphalt compound and an upper side lap, which is an adhesive layer formed on an upper side of the center material layer, and the center material. It relates to a multi-layer / composite waterproof asphalt waterproof sheet having a double adhesive portion, characterized in that it comprises a lower side lap (Side lap) which is an adhesive layer formed on the lower side of the other side.

In general building structures, it is necessary to prevent water leakage from precipitation, and waterproof work is necessary to prevent cracking or deterioration of durability of the structure.

Conventional waterproofing methods include asphalt waterproofing, cement liquid waterproofing, sheet waterproofing, and coating waterproofing. Among these, asphalt waterproofing is the waterproofing method that has been used for the longest time. Apply several layers on the area.

Among these, the sheet waterproofing method is recently used based on the efficiency of work and the neat appearance after the work, and the sheet waterproofing method is used as the main raw material on the structure where the waterproof sheet manufactured in advance to the standard is coated on the structure treated with the coating film. It is sticking. The existing waterproof sheet used a method of melting and attaching the waterproof sheet joint using a torch lamp. The waterproof sheet is carbonized instead of melted when heated with a torch, which is fatal to the waterproof life, and the film is entangled with the carbonized gas, so the tangled portion of the film is inferior in adhesive strength. In addition, the heating inadvertently overheated to puncture the sheet, or a portion that is not properly heated, there is a problem that often occurs when the joint is not uniformly attached to the melt. In addition, there was a problem that the life of the sheet is shortened due to deterioration, and when the temperature is lowered, there is a problem that the sheets are hardened and broken or the sheets are not adhered to each other, and thus the seasonal limitation of heat processing with the torch is required. In addition, since the sheet is stored in the form of a roll when the sheet is stored, there is a problem in that the roll is wound, and water penetrates into the curve after the waterproofing operation.

Existing inventions have utilized the advantages of sheet waterproofing, but rather than the fundamental development of the overlapping area, which is a weak part of sheet waterproofing, the problem of the overlapping part of the sheet using a general-purpose product that is widely used, namely exposed polyurethane, has been solved. I tried to solve. This may cause a high rate of defects due to the complexity of construction, and there is a problem in that the asphalt content is potentially adversely affected in the membrane sheet, which has a large amount of solvent in urethane. In other words, PE film is impregnated on the upper surface of the conventional waterproof sheet, and non-woven fabric is impregnated on the lower surface thereof, and the PE film and the nonwoven fabric are not properly fused at the overlapping portions of the upper and lower surfaces between the waterproof sheets, and a serious defect occurs in watertightness. . In this case, in order to solve the problem of lowering the watertightness by coating the coating agent in addition to the overlap between the waterproof sheets, even if the coating agent is further applied, there is no significant contribution to the improvement of the watertightness.

On the other hand, in order to improve the physical properties related to the bonding strength of the materials to be installed up and down during the construction process or for aesthetic purposes, granules or grit-like fine grains are coated on the surface is generally coated waterproof sheet This is called a grit sheet. The fine particle-attached waterproof sheet or grit sheet is embedded by the fine particles coated on the surface of the fine particles, the sheets do not stick to each other and do not require a separate release film during the storage and transportation process. Since the removal of the release film is excluded, there was an advantage in simplifying the construction.

However, such fine-grained attachable waterproof sheet also had a problem that a separate waterproofing agent or installation of a waterproof member was required at the overlapped portion, which is a weak part of the waterproof sheet. In other words, if the granules are included in the overlap between the waterproof sheets to which the granules are applied, defects may occur due to poor adhesion. In particular, when the overlap between the waterproof sheets is treated by conventional torch heat processing, the above problems of the torch heating are intact. In the case of EVA waterproof sheet, the work is progressed by a hot machine with a hot air blower to improve the adhesive strength of the overlapped part, but this also has many problems such as cumbersome work and high labor cost.

The present invention solves the problems of the existing inventions described above, two or more of the waterproof sheet by the upper / lower side wraps and start traps that can exhibit the maximum adhesion of the compound itself, without a separate waterproofing treatment or installation of the waterproof member When subsequent construction, the upper side wrap formed on the waterproof sheet and the lower side wrap formed on the waterproof sheet overlapped with the waterproof sheet overlap each other, and the need for a separate adhesive / adhesive layer is required by the adhesive force between the asphalt compounds having the same physical properties. If a certain time elapses at room temperature without applying heat, excellent adhesion can be obtained without material separation, and even if the temperature is low, the original adhesiveness can be maintained without curing and breaking.

In order to achieve the above object, the present invention, the base material layer is impregnated with asphalt compound, the upper side lap (Side lap) which is an adhesive layer formed on the upper side of the center material layer, the other side of the center material layer It characterized in that it comprises a lower side wrap (Side lap) that is an adhesive layer formed on the lower.

In addition, the present invention, the upper fine grain layer is impregnated by applying a fine-grained granule (grit) or granules to the upper surface of the core material layer except the upper side wrap, the core material layer except the lower side wrap The lower surface of the grit (grit) or granules (granule) of the fine particle is characterized in that it further comprises a lower layer of fine particles impregnated by applying.

In addition, the fine particles are applied to any one or more of the upper fine particle layer and the lower fine particle layer is characterized in that it comprises a silica sand.

In addition, an upper impregnation layer having any one of PE film, a copper thin film, a nonwoven fabric, and an aluminum thin film is impregnated on the upper surface of the center material layer 110 except for the upper side wrap 130, and the center material except the lower side wrap. The lower surface of the layer is characterized in that it further comprises a lower impregnation layer is impregnated with any one of the PE film, copper thin film, non-woven fabric, aluminum thin film.

In addition, the upper side release film-type film further attached to the upper surface of the upper side wrap, characterized in that it further comprises a lower side release film further attached to the lower side of the lower side wrap.

In addition, the side wrap is characterized in that an add-lap (add-lap) consisting of a hot melt additional adhesive layer is further formed.

According to the present invention, the upper side wrap formed on the waterproof sheet when two or more waterproof sheets are successively installed by the upper / lower side wraps and the start traps, which can exhibit the adhesiveness of the compound as much as possible, and the waterproof sheets As the lower side wraps formed on the waterproof sheet overlapped with each other overlap with each other, the adhesive strength between the compounds having the same physical properties allows excellent adhesive strength to be obtained after a certain time at room temperature without applying heat without the need for a separate adhesive / adhesive layer. And, even if the temperature is low, there is an advantage that the original adhesiveness can be maintained without curing and broken.

In addition, by impregnating the fine particles in the lower portion of the asphalt layer, there is an advantage that the adhesive strength between different materials is enhanced by increasing the irregular surface area due to irregularities to achieve a stable construction.

On the other hand, by preventing the exposure of the asphalt layer by the impregnation of fine particles, it is possible to eliminate the release process of the release paper during manufacturing, thereby reducing the raw materials and reducing the process, and the construction is simplified since the removal of the release paper during construction is excluded.

In addition, there is no need to apply a coating agent on the waterproof sheet overlapping parts as in the conventional method has the effect of reducing the VOC emissions and labor costs.

1 is an external perspective view of an asphalt waterproof sheet having a double adhesive portion according to an embodiment of the present invention.
Figure 2 is a cross-sectional view of the AA 'portion of Figure 1 of the asphalt waterproof sheet with double adhesive portion according to an embodiment of the present invention.
3 is a cross-sectional view showing the bonding process in the installation process of the asphalt waterproof sheet having a double adhesive portion according to an embodiment of the present invention.
4 is a perspective view showing a state of the satul of the asphalt waterproof sheet having a double adhesive portion according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, it will be described in detail the asphalt waterproof sheet having a double adhesive portion according to an embodiment of the present invention. First, it should be noted that, in the drawings, the same components or parts are denoted by the same reference numerals whenever possible. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

A preferred embodiment of the present invention, as shown in Figure 1, the core layer 110, the start wrap 120, the upper side wrap 130, the lower side wrap 140, the upper fine grain layer 150 and the lower The fine particle layer 160 is configured.

First, the core material layer 110 will be described. As shown in FIG. 1, the core material layer 110 is impregnated with an asphalt compound 115 and is made of a nonwoven fabric material.

In this case, the asphalt compound 115 is preferably configured by mixing asphalt, synthetic rubber, process oil, rosin, hydrocarbon resin.

The asphalt compound 115, it is possible to lower the content of the process oil in order to compensate for durability and strength, it is also possible to increase the content of the process oil in order to enhance the adhesion.

There are many kinds of synthetic rubber, but the synthetic rubber used in the present invention is preferably a block copolymer obtained by polymerizing butadiene and styrene in an organic solvent without vulcanization. When the synthetic rubber is mixed with asphalt, the adhesive strength is excellent even at low temperatures, and the adhesive strength is maintained for a long time. In addition, due to the decrease in the temperature sensitivity, the use temperature range is wide, the cohesive force is excellent, the elasticity and the impact resistance is improved, as well as the durability and wear resistance can be reinforced.

Process oil is an oil used to increase the processability of rubber. Especially, naphthenic process oil is suitable for processing at high temperatures, and has low evaporation loss and excellent processability when mixed with asphalt. It can make products with excellent hardness and tensile strength.

In addition, rosin is a colorless transparent liquid, but it becomes whitish and sticky over time, and precipitates a white solid from resin acid. The rosin received by wounding the tree is dissolved in ethanol, chloroform and acetic acid, but not in water, and rosin remains after distillation of water vapor to obtain terebin oil. There is a good waterproofing effect of turpentine oil is suitable for constructing asphalt compounds.

Hydrocarbon resin is a soft solid or rubbery material made by combining unsaturated components of coal tar, rosin and petroleum, and is used in asphalt blends or paints. In the present invention, it is mixed with asphalt to enhance the adhesive strength of asphalt compounds.

Next, the start wrap 120 will be described. As shown in FIG. 1, the start wrap 120 is formed at one end of the center material layer 110 and is an adhesive layer formed on an upper surface in a horizontal direction. The start wrap 120 has a function of enabling the adhesion of the overlapping portion of the fine-grained waterproof sheet 100 when connecting the asphalt waterproof sheet 100 having a double adhesive portion of the present invention in the longitudinal direction. . On the other hand, the start wrap 120 preferably has a width of about 1.5 to 2 times the width of the upper side wrap 130 or the lower side wrap 140, the width is about 90 to 110cm It is preferable. However, the start wrap 120 may not need to be provided in the present invention when there is no need to connect and install in the longitudinal direction.

Next, the upper side wrap 130 and the lower side wrap 140 will be described.

As illustrated in FIGS. 1 and 2, the upper side wrap 130 is an adhesive layer formed on an upper side of the central material layer 110. Meanwhile, as shown in FIGS. 1 and 2, the lower side wrap 140 is an adhesive layer formed under the other side of the center material layer 110. When the upper side wrap 130 and the lower side wrap 140 is constructed by connecting the asphalt waterproof sheet 100 having the double adhesive portion of the present invention in the width direction as shown in FIG. On the upper side wrap 130 of the asphalt waterproof sheet 100 having a double adhesive portion, the lower side wrap 140 of the asphalt waterproof sheet 100 having the double adhesive portion overlapped and constructed is overlapped with each other. . In this case, the asphalt exposed through the upper side wrap 130 and the lower side wrap 140 after a predetermined time (about 10 minutes to 40 minutes depending on the temperature) has elapsed without the need for additional heating or processing Compound 115 is adhered / fused to each other and integrated as shown in (c) in Figure 3, it is possible to be constructed in a highly efficient waterproof structure at the overlapping construction.

Next, the upper fine particle layer 150 and the lower fine particle layer 160 will be described. The upper fine particle layer 150 is in a grid or granule state on the upper surface of the center layer 110 except for the start wrap 120 and the upper side wrap 130 as shown in FIG. 1. Fine particles are formed by applying. In this case, the fine grains constituting the upper fine grain layer 150 may be pressure-applied so that a part of the fine grain layer 150 may be impregnated and attached to the asphalt compound 115.

Meanwhile, as shown in FIG. 1, the lower fine particle layer 160 is applied by a fine particle in a grit or granule state on a lower surface of the center layer 110 except for the lower side wrap 140. It is formed. In this case, too, the fine particles constituting the lower fine particle layer 160 may be pressure-applied so that a part of the fine particles may be impregnated and attached to the asphalt compound 115.

The fine grains pressurized and applied to any one or more of the upper fine grain layer 150 and the lower fine grain layer 160 may be formed of various materials and shapes. In a preferred embodiment, the fine grains include silica sand It is preferable to be configured.

As described above, the upper fine particle layer 150 and the lower fine particle layer 160 are formed on the upper and lower surfaces of the core material layer 110, respectively, to increase the irregular surface area due to irregularities. The adhesion of the liver is enhanced to have the effect of achieving a solid construction. In addition, the asphalt compound 115 is prevented from being exposed on the upper and lower surfaces of the center layer 110 by the upper fine grain layer 150 and the lower fine grain layer 160, thereby attaching a release paper during manufacturing. This eliminates the effects of raw material reduction and process reduction, and removes the release paper during construction, thereby simplifying the construction.

The fine particle layer is disposed on the upper surface of the center material layer 110 except for the start wrap 120 and the upper side wrap 130 and the lower surface of the center material 110 except the lower side wrap 140. Instead of 150, any one of a PE film, a copper thin film, a nonwoven fabric, and an aluminum thin film may be impregnated.

Meanwhile, since the asphalt compound 115 is exposed in the start wrap 120, the upper side wrap 130, and the lower side wrap 140, the front wrap is further attached to the top surface of the start wrap 120. A release film 170, an upper side release film 171 further attached to an upper surface of the upper side wrap 130, and a lower side release film 172 further attached to a lower surface of the lower side wrap 140. In order to further include, it is preferable to prevent the portions of the start wrap 120, the upper side wrap 130, and the lower side wrap 140 exposed during movement and storage from sticking to each other.

On the other hand, the upper side wrap 130 is preferably an additional adhesive layer is further formed. The ad wrap (not shown) may be configured to include any one or more of polyol resin, glue, polyurethane, sealant, butyl rubber, silicone resin, chlorofran rubber, acrylic rubber, rubber asphalt. On the other hand, the ad wrap (not shown) is preferably configured to be composed of 1 to 10 lines on the side of the side lap (side lap) with a thickness of about 2mm and a width of 0.5 ~ 1.5cm. In addition, the ad wrap is preferably configured in a curved or zigzag or linear shape.

Polyurethane is elastic, has excellent elastic recovery, is much stronger than rubber, and does not easily age. It is also a polymer material with excellent adhesion. Accordingly, when the ad wrap is made of polyurethane, the waterproof sheet is prevented from being doubled to prevent cracking and bending, which is a problem that the general waterproof sheet has in a roll form, and further strengthens the adhesive force between sheets, Prevent water from seeping through. In addition, there is an advantage that it is suitable for application to the non-exposed type as well as the exposed sheet because it is resistant to heat.

On the other hand, the ad wrap may be made of a material other than the above-described material, it can also be configured using a hot melt, in particular a rubber-based hot melt in one embodiment.

Hot melt refers to an adhesive that does not use water or a solvent at all.At the base polymer, a thermoplastic resin is used as a tackifier, and an antioxidant and a filler are mixed with three main components of waxes that reduce the viscosity at the time of melting and improve applicability. It is an adhesive that is prepared and applied to the surface of the adherend in a hot melt state, and then cooled and solidified when cooled. The hot melt may be classified into E.V.A (Ethylene Vinyl Acetate), Rubber, Polyamide, and Polyurethane based on its main material.

EVA (Ethylene Vinyl Acetate) series is the most commonly used hot melt and is mainly used for general bonding of box, carton packaging or paper, wood, steel, clothing, plastics.

Rubber is a rubber-based hot melt, used as an adhesive with adhesive strength at room temperature, and has the characteristics of excellent flexibility and tension. .

Best Mode for Carrying Out the Invention Best modes have been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: fine-grained waterproof sheet
110: core layer 115: asphalt compound
116: fine particles
120: start lap
130: upper side wrap 135: ad wrap
140: lower side wrap
150: upper fine grain layer 160: lower fine grain layer
170: front release film 171: upper side release film
172: lower side release film

Claims

A core layer impregnated with an asphalt compound;
An upper side wrap which is an adhesive layer formed on an upper side of the central material layer;
The lower side wrap (Side lap) which is an adhesive layer formed on the lower side of the other side of the center material layer; Waterproof sheet having a double adhesive portion comprising a.

The method of claim 1,
An upper fine particle layer impregnated by applying a fine particle of a grit or granule state to an upper surface of the core material layer except for an upper side wrap;
A lower fine particle layer impregnated by applying a fine particle in a grit or granule state to a lower surface of the center layer except for the lower side wrap;
Waterproof sheet having a double adhesive portion, characterized in that further comprises.

3. The method of claim 2,
The fine sheet, which is pressure-coated to any one or more of the upper fine particle layer and the lower fine particle layer is a waterproof sheet having a double adhesive portion, characterized in that it comprises a silica sand.

The method of claim 1,
An upper impregnation layer in which any one of a PE film, a copper thin film, a nonwoven fabric, and an aluminum thin film is impregnated on an upper surface of the center layer 110 except for the upper side wrap 130;
A lower impregnation layer in which any one of a PE film, a copper thin film, a nonwoven fabric, and an aluminum thin film is impregnated on a lower surface of the center layer except for the lower side wrap;
Waterproof sheet having a double adhesive portion, characterized in that further comprises.

The method according to any one of claims 1 to 4,
An upper side release film further attached to an upper surface of the upper side wrap;
A lower side release film further attached to a lower surface of the lower side wrap; Waterproof sheet having a double adhesive portion, characterized in that further comprises.

The method of claim 5,
The upper side wrap is a waterproof sheet having a double adhesive portion, characterized in that the add-lap (add-lap) consisting of an additional adhesive layer is further formed.