Panel with cushion function and method for manufacturing same panel
A panel with a nonwoven fabric and foamed resin layer addresses shrinkage and expansion issues in wooden flooring, stabilizing the materials and reducing costs and noise.
Patent Information
- Application Number
- PCT/KR2023/020798
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-12-14
- Filing Date
- 2023-12-15
- Publication Date
- 2025-06-05
AI Technical Summary
Wooden flooring materials, particularly those used in wider rectangular or square shapes, experience shrinkage and expansion due to temperature and humidity changes, leading to issues like bending and increased manufacturing costs, which limits diversification and expansion of specifications.
A panel design incorporating a wood board with a nonwoven fabric bonded to its lower surface, featuring micropores, and a foamed resin layer impregnated with adhesive, which is bonded to the nonwoven fabric, providing a stable cushioning function and reducing material thickness.
The panel design stabilizes the flooring materials against shrinkage and expansion, reduces manufacturing costs, and enhances bonding processes, while also reducing floor impact noise.
Smart Images

Figure KR2023020798_05062025_PF_FP_ABST
Abstract
Description
Panel with cushion function and method for manufacturing the panel
[0001] The present invention relates to a panel having a cushion function and a method for manufacturing the panel.
[0002] The existing wooden flooring specifications were narrow and long in the form of a parquet floor (e.g., 7.5T x 75 x 800, 95 x 800, 115 x 800, 143 x 1,205mm, etc.), but recently, wide rectangular or square wooden flooring (e.g., 300 x 600, 600 x 600mm, etc.) is replacing marble and tile flooring, and is preferred by consumers, and manufacturers are also increasing production.
[0003] When producing wide rectangular and square flooring materials, wood-based boards such as plywood and MDF are used as substrates. However, due to the ondol floor environment in Korea and the changes in temperature and humidity conditions throughout the four seasons, all wood-based boards are particularly prone to shrinkage and expansion in the width direction, and bending and cupping frequently occur when surface finishing materials are adhered to one surface, which limits the diversification and expansion of specifications.
[0004] In order to prevent and minimize the movement of surface materials due to changes in temperature and humidity, the thickness of the wood-based board, which is the underlying material, must be made thicker than before. However, in the domestic reality where most raw materials are imported and used, there is a problem that is accompanied by an increase in raw material and manufacturing costs and an increase in loss rate.
[0005] (Patent Document 1) Republic of Korea Patent Publication No. 10-1737404 (Title: Interfloor Noise Reduction Ondol Floor; Publication Date: May 19, 2017)
[0006] The present invention relates to a panel having a cushioning function and a method for manufacturing the panel, and the purpose of the present invention is to provide a panel having a cushioning function and a method for manufacturing the panel, which can easily attach a foam resin layer as a cushioning material to the panel and maintain the attached state stably and firmly.
[0007] The panel having a cushion function of the present invention comprises: a wood board; a non-woven fabric bonded to the lower surface of the wood board through an adhesive; and
[0008] The present invention includes a foam resin layer bonded to the lower surface of the nonwoven fabric, wherein the nonwoven fabric has a plurality of micropores formed therein, and some of the adhesive may pass through the nonwoven fabric through the micropores and be impregnated into the foam resin layer.
[0009] The nonwoven fabric of the present invention may contain a cellulose component.
[0010] The nonwoven fabric of the present invention may contain a jute component.
[0011] The nonwoven fabric of the present invention may include a binder formed of acrylic resin.
[0012] The foam resin layer of the present invention may be directly foam-molded on the lower surface of the nonwoven fabric, and the nonwoven fabric may be bonded to the lower surface of the wood board through the adhesive after the foam resin layer is foam-molded on the lower surface.
[0013] The adhesive applied to the upper surface of the nonwoven fabric of the present invention may form a penetration bonding layer that bonds the wood board, nonwoven fabric, and foam resin layer at once after impregnating and curing the foam resin layer through the micropores.
[0014] The present invention may further include a surface material bonded to the upper surface of the wood board.
[0015] The present invention may further include a balance material between the wood board and the nonwoven fabric.
[0016] A surface material may be further bonded to the upper surface of the wood board of the present invention, and a balance material formed of the same material as the surface material may be further laminated and bonded between the wood board and the non-woven fabric.
[0017] The lower surface of the balance material of the present invention may be sanded.
[0018] And, the method for manufacturing a panel having a cushioning function of the present invention comprises the steps of preparing a wood board; the step of preparing a nonwoven fabric having a plurality of micropores formed therein; the step of foaming and molding a foam resin layer on one side of the nonwoven fabric; and the step of bonding the lower surface of the wood board and the other side of the nonwoven fabric using an adhesive. In the step of bonding using the adhesive, a portion of the adhesive may pass through the nonwoven fabric through the micropores and be impregnated into the resin layer.
[0019] In the present invention, the foaming step may include a step of applying a foaming compound including a synthetic resin, a foaming agent, a plasticizer, an emulsifier, a filler, etc. in an appropriate ratio to one surface of the nonwoven fabric; and a step of allowing the temperature (heat) required for foaming in a foaming furnace (Dryer) to pass through the micropores and quickly reach the foaming compound, thereby facilitating gas release and dispersion in the compound, thereby reducing the foaming temperature and energy compared to the existing foaming method, improving the production speed, and improving the integral foaming of the micropores of the nonwoven fabric and the foaming resin layer.
[0020] The present invention may further include a step of laminating and bonding a balance material between the wood board and the nonwoven fabric between the step of foaming the foam resin layer and the step of bonding it using the adhesive.
[0021] The present invention has the effect of easily attaching a foam resin layer as a cushioning material to a board and maintaining the attachment state stably and firmly.
[0022] The present invention can secure stable quality by minimizing shrinkage and expansion of wooden flooring materials due to temperature and humidity changes, especially in the domestic ondol floor culture, in accordance with the expansion of the standards of boards, for example, wooden flooring materials, and the preference trend, and at the same time, it is also effective in reducing floor impact noise in apartment buildings, etc., by applying an integrated cushioning material under the wooden flooring materials.
[0023] The present invention reduces the use of imported wood (reducing the thickness of the board) and product cost by applying an integrated cushioning material, improves the bonding process, reduces adhesive costs, and enhances price competitiveness through product cost and cost reduction.
[0024] FIG. 1 is a perspective view showing the configuration of a panel according to one embodiment of the present invention.
[0025] Figure 2 is a cross-sectional view showing the configuration of a panel according to one embodiment of the present invention.
[0026] Figure 3 is a perspective view showing an example in which a foam resin layer is formed by foaming on a nonwoven fabric of the present invention.
[0027] Figure 4 is an exemplary diagram showing a state in which an adhesive is penetrated and impregnated to form a penetration bonding layer in the present invention.
[0028] Figure 5 is a perspective view showing the configuration of a panel according to another embodiment of the present invention.
[0029] Fig. 6 is a cross-sectional view showing the configuration of a panel according to another embodiment of the present invention.
[0030] Figure 7 is a block diagram illustrating steps of a manufacturing method according to one embodiment of the present invention.
[0031] Figure 8 is a block diagram illustrating steps of a manufacturing method according to another embodiment of the present invention.
[0032] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing reference numerals, identical or similar components will be assigned the same reference numerals, and redundant descriptions thereof will be omitted. Furthermore, when describing embodiments disclosed in this specification, if a detailed description of a related known technology is judged to obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted.
[0033] Terms that include ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by these terms. These terms are used solely to distinguish one component from another.
[0034] Singular expressions include plural expressions unless the context clearly indicates otherwise.
[0035] In this application, each step described may be performed regardless of the listed order, except in cases where a special causal relationship requires that the steps be performed in the listed order.
[0036] In this application, terms such as “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but should be understood not to exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.
[0037]
[0038] Hereinafter, the present invention will be described with reference to the attached drawings.
[0039] First, one embodiment of the panel (100) having a cushion function according to the present invention includes, as illustrated in the attached drawings, FIGS. 1 and 2, a wood board (110); a nonwoven fabric (120) bonded to the lower surface of the wood board (110) through an adhesive; and a foamed resin layer (130) bonded to the lower surface of the nonwoven fabric (120); wherein the nonwoven fabric (120) has a plurality of micropores (121) formed therein, and some of the adhesive may pass through the nonwoven fabric (120) through the micropores (121) and be penetrated and bonded to the foamed resin layer (130).
[0040] According to the present invention, it is possible to easily attach a foam resin layer (130) as a cushioning material to a wooden board (110) and maintain the attachment state stably and firmly.
[0041] In addition, the present invention can secure stable quality by minimizing shrinkage and expansion of wooden flooring materials due to temperature and humidity changes, especially in the domestic ondol floor culture, in accordance with the expansion of the specifications of wood boards (110), for example, wooden flooring materials, and the preference trend, and at the same time, it is possible to reduce floor impact noise in apartment buildings, etc., by applying an integrated buffer material under the wooden flooring materials.
[0042] In addition, the present invention can reduce the use of imported wood (reducing the thickness of the board) and product cost by applying an integrated cushioning material, improve the bonding process, and reduce adhesive costs.
[0043] Here, the wood board (110) of the present invention may be plywood or raw wood itself, which is a preferred embodiment, but is not necessarily limited thereto and may also be applied to a synthetic resin material, metal material, or stone board depending on the purpose, use, and other optional needs.
[0044] Meanwhile, the nonwoven fabric (120) of the present invention may be manufactured from or contain cellulose or jute (Corchorus capsularis) components.
[0045] The above cellulose is made through the processing of fiber, a complex carbohydrate or polysaccharide composed of more than 3,000 glucose units.
[0046] The above-mentioned jute refers to two species of plants belonging to the genus Corcorus in the Pinaceae family. Jute and Corcorus olitorius are used to extract fibers and weave them into nonwoven fabrics.
[0047] Cellulose and jute, as mentioned above, are natural materials, harmless to the human body, have low risk of use, are safe, and can be recycled. They also have the advantage of being environmentally friendly, as they can be incinerated or landfilled when disposed of.
[0048] Additionally, the nonwoven fabric (120) of the present invention may be made of a polyester component.
[0049] Additionally, the nonwoven fabric (120) of the present invention may include a binder formed of acrylic resin.
[0050] The above binder may be prepared as an organic binder or an inorganic binder, and may be added to a mixture to perform the function of binding a plurality of foamable resins to each other.
[0051] As an example of a binder, a mixed resin of acrylic modified polyester resin, epoxy resin, and melamine resin can be used.
[0052] However, this is not limited to this, and the binder may be configured in various embodiments that perform the function of causing a plurality of foamable resins to bind to each other.
[0053] As a preferred embodiment, the nonwoven fabric (120) as described above is applied with a thickness of 0.1 to 0.3 mm, a tensile strength of 2,000 to 3,000 N / m, a specific gravity of 50 to 100 g / m2, and a heat-resistant temperature of 200°C or higher, which has stable shrinkage and expansion properties due to heat. However, the above-mentioned limiting conditions may be increased or decreased depending on the thickness and material of the wood board (110).
[0054] The nonwoven fabric (120) applied to the present invention has micropores (121) formed therein, and the micropores (121) may be formed as a mesh structure or a perforated structure formed during the weaving process of the nonwoven fabric (120).
[0055] In the case of non-woven fabric with a fiber structure, when manufacturing and producing wide and long flooring materials, shrinkage and expansion of the wood board (110) due to temperature and humidity changes according to the four seasons and floor heating are minimized.
[0056] These fiber nonwoven fabrics have the property of shrinking about 0.6-0.8% in width and length after 4 hours at a temperature of 100℃ or higher, and by utilizing the property of slight shrinkage at a temperature and time below that, when laminated and adhered to the bottom of wooden flooring, it is effective in maintaining smoothness by eliminating the phenomenon of bending (cupping) of the flooring, thereby reducing the number of defects and unsuitable cases such as unevenness, warping, and distortion of the surface of the flooring after construction.
[0057] At this time, the purpose of applying wet nonwoven fabric is to provide flexibility, strength, uniformity, heat resistance, and dimensional stability, and to have a vibration damping effect to reduce vibration noise, and the composition of the ingredients is composed of natural fibers such as wood pulp, cotton, wool, hemp, jute, and coconut, and polyester, so that uniform and fine porosity control is possible, and the natural fiber ingredients such as wood pulp can improve the adhesive performance with wood (flooring).
[0058] In addition, the nonwoven fabric (120) is produced as a sheet or web structure that is bonded by mechanically, thermally or chemically entangling fibers or filaments, and types such as chemical bonding nonwoven fabric, thermal bonding nonwoven fabric, and needle punching nonwoven fabric can be applied.
[0059] For reference, the above nonwoven fabric (120) has different properties (large difference in properties and degree of characteristics) depending on the type of raw material used, the method of creating and combining the web, the type of adhesive, etc., so when intending to use a nonwoven fabric, it is preferable to first clearly define the purpose of use and its use (filtration, heat retention, moldability, absorbency, insulation, discharge, etc.), and then select and develop the required nonwoven fabric accordingly.
[0060] Meanwhile, the foam resin layer (130) of the present invention may be made of PVC material.
[0061] At this time, the foam resin layer (130) may be foamed to have a thickness of 1.5 to 5.0 mm and a density of 0.24 to 0.30 g / cm3.
[0062] The foam structure of the foam resin layer (130) of the present invention is, as an example, formed of a composite structure in which open cells and close cells (independent cells) are mixed.
[0063] In the above, when the foamed resin layer (130) is open cell, the fluidity of air is secured, and the inflow and outflow of heat is relatively large compared to the closed cell, and when the foamed resin layer (130) is close cell, the fluidity of air is not high, and the inflow and outflow of heat is small, so the insulation is relatively high compared to the open cell. Therefore, the foamed structure of the foamed resin layer (130) of the present invention may be formed as a composite structure in which the open cell and close cell described above are mixed, so that the advantages of the two types can be appropriately combined.
[0064] If the thickness and density of the foamed resin layer (130) are below the above-described range, there is a problem that the durability of the entire flooring material is reduced. On the other hand, if the thickness and density of the foamed resin layer (130) exceed the above-described range, there is a problem that the absorption efficiency of lightweight impact sounds is reduced.
[0065] The foamed resin layer (130) as described above may be directly foam-molded on one side (bottom side) of the nonwoven fabric (120), and after the foamed resin layer (130) is foam-molded on one side of the nonwoven fabric (120), it may be bonded to the bottom side of the wood board (110) using the adhesive.
[0066] In this way, as illustrated in the attached drawing Figure 3, the foamed resin layer (130) can be manufactured as an integral part with the nonwoven fabric (120), thereby simplifying the bonding process between the two and reducing the manufacturing cost.
[0067] In addition, in the present invention, the adhesive applied to the upper surface of the nonwoven fabric (120) may form a penetration bonding layer (1) that simultaneously bonds the wood board (110), the nonwoven fabric (120), and the foamed resin layer (130) after impregnation and curing through the micropores (121) of the nonwoven fabric (120) into the foamed resin layer (130), as shown in a) and b) of the attached drawing, FIG. 4.
[0068] The above-mentioned penetration bonding layer (1) is formed when the adhesive is applied to one side of the nonwoven fabric (120), i.e., the upper side, and the nonwoven fabric (120) is laminated and adhered to the lower surface of the wood board (110), and then cured and bonded. It is a layer formed when a portion of the adhesive applied to the nonwoven fabric (120) passes through the micropores (121) of the nonwoven fabric (120) and penetrates a portion of the foam resin layer (130) and is cured and bonded.
[0069] In the present invention, during the process of bonding the nonwoven fabric (120) to the wood board (110), the adhesive extends to one side of the foam resin layer (130) in contact with the nonwoven fabric (120), and after the adhesive hardens, the wood board (110), the nonwoven fabric (120), and the foam resin layer (130) are bonded simultaneously, thereby obtaining and maintaining perfect bonding strength at once, thereby reducing manufacturing costs through reduction in manufacturing process and time.
[0070] The present invention may further include a surface material (10) bonded to the upper surface of the wood board (110).
[0071] The above surface material (10) may be any one of a hard, high-density decorative plate, natural wood grain, PE, PVC, and olefin sheet, and may also be any one of HPM (high-pressure thermosetting resin decorative plate) and LPM (low-pressure thermosetting resin decorative plate) containing melamine.
[0072] In this way, when a surface material (10) is further provided on the surface of the above-mentioned wooden board (110), the beauty of the surface can be expressed in various ways, and scratches on the surface can be minimized.
[0073] Hereinafter, let us look at another embodiment of the panel (100) having a cushion function of the present invention. As shown in the attached drawings, FIG. 5 and FIG. 6, it may further include a balance material (140) bonded between the wood board (110) and the non-woven fabric (120).
[0074] At this time, it is also preferable that a surface material (10) is further bonded to the upper surface of the wood board (110), and a balance material (140) formed of the same material as the surface material (10) is further laminated and bonded between the wood board (110) and the non-woven fabric (120).
[0075] In this way, if a balance material (140) is additionally provided between the wood board (110) and the non-woven fabric (120), the balance material (140) prevents shrinkage, expansion, or bending (cupping) in the width direction from occurring due to changes in temperature and humidity conditions in each season.
[0076] At this time, the surface (bottom or upper and lower surfaces) of the balance material (140) may be sanded.
[0077] When the surface of the balance material (140) is sanded in this way, adhesive fixing strength and fixing maintenance stability can be secured between the wood board (110) and the non-woven fabric (120).
[0078] And, the method for manufacturing a panel with a cushioning function of the present invention includes, as illustrated in the attached drawing 7, a step (S10) of preparing a wood board (110); a step (S20) of preparing a nonwoven fabric (120) having a plurality of micropores (121) formed therein; a step (S30) of foaming a foam resin layer (130) on one surface of the nonwoven fabric (120); and a step (S50) of bonding the lower surface of the wood board (110) and the other surface of the nonwoven fabric (120) with an adhesive; wherein, in the step (S50) of bonding with the adhesive, some of the adhesive may pass through the nonwoven fabric (120) through the micropores (121) and penetrate and bond (impregnate) the foam resin layer (130).
[0079] Here, the step (S10) of preparing the wood board (110) of the present invention is a step of manufacturing wood, such as plywood or raw wood itself, to a required standard, and may also be a step of manufacturing it as a synthetic resin material, metal material, or stone board depending on the intended use, intended use, and other optional needs.
[0080] Next, the step (S20) of preparing the nonwoven fabric (120) of the present invention is a step of weaving a cellulose or jute (Corchorus capsularis) component into fibers, and may also be a step of forming a pad and forming holes through punching, etc.
[0081] In the above, cellulose is an example of something made through the processing of fiber, a complex carbohydrate or polysaccharide composed of more than 3,000 glucose units.
[0082] The above-mentioned jute is a plant belonging to the genus Corcorus in the Pinaceae family. As examples, jute and Corcorus olitorius are used to extract fibers and weave them into non-woven fabrics.
[0083] Additionally, the nonwoven fabric (120) of the present invention may be manufactured from a polyester component.
[0084] Additionally, the nonwoven fabric (120) of the present invention may be manufactured by adding a binder formed of acrylic resin.
[0085] The above binder is an organic binder or an inorganic binder, and is added to the mixture to perform the function of binding a plurality of foamable resins to each other.
[0086] As an example of a binder, a mixed resin of acrylic modified polyester resin, epoxy resin, and melamine resin may be used.
[0087] At this time, the nonwoven fabric (120) preparation step is to make the nonwoven fabric (120) 0.1 to 0.3 mm thick, tensile strength 2,000 to 3,000 N / m, specific gravity 50 to 100 g / m2, and heat resistance temperature 200°C or higher so that shrinkage and expansion due to heat can be stabilized.
[0088] At this time, in the nonwoven fabric (120) preparation step, it is preferable that the micropores (121) of the nonwoven fabric (120) are naturally formed into a mesh while weaving the nonwoven fabric itself, but it is also preferable to form the nonwoven fabric (120) into a pad shape and form perforations on its surface.
[0089] Meanwhile, the step (S30) of foaming a foam resin layer (130) on one side of the nonwoven fabric (120) of the present invention is a step of forming a foam resin layer (130) by applying or spraying a foaming compound of an appropriate ratio of PVC synthetic resin, foaming agent, plasticizer, emulsifier, filler, etc. on one side of the nonwoven fabric (120) to form a foam resin layer (130) through foaming.
[0090] The step (S30) of foaming a foam resin layer (130) on one side of the nonwoven fabric (120) may include a step (S31) of applying a foaming compound to one side of the nonwoven fabric (120); and a step (S32) of foaming in which the temperature (heat) required for foaming in a dryer passes through the micropores of the nonwoven fabric (120) and quickly reaches the foaming compound, thereby facilitating gas release and dispersion in the compound, thereby reducing the foaming temperature and energy compared to the existing foaming method, improving the production speed, and foaming the micropores of the nonwoven fabric and the foaming resin layer as one.
[0091] At this time, the foam resin layer (130) is foamed with a thickness of 1.5 to 5.0 mm and a density of 0.24 to 0.30 g / cm3.
[0092] If the thickness and density of the foamed resin layer (130) are below the above-described range, there is a problem that the durability of the entire flooring material is reduced. On the other hand, if the thickness and density of the foamed resin layer (130) exceed the above-described range, there is a problem that the absorption efficiency of lightweight impact sounds is reduced.
[0093] Meanwhile, the step (S50) of bonding using the adhesive in the present invention is a step of directly foaming the foam resin layer (130) onto one side (bottom side) of the nonwoven fabric (120), and then bonding the side facing the nonwoven fabric (120) to the bottom side of the wood board (110) using the adhesive.
[0094] In this way, the foam resin layer (130) can be manufactured as an integral part with the nonwoven fabric (120), thereby simplifying the bonding process between the two and reducing the manufacturing cost.
[0095] In addition, the present invention bonds the nonwoven fabric (120) to the wood board (110) by cold pressure, so that the adhesive extends to one side of the foam resin layer (130) in contact with the nonwoven fabric (120) during bonding, and when the adhesive hardens, the wood board (110), the nonwoven fabric (120), and the foam resin layer (130) can maintain perfect bonding strength together in a single bonding operation, thereby reducing the manufacturing cost through reduction in the manufacturing process and time.
[0096] The method for manufacturing a panel having a cushion function of the present invention as described above may include, in the step of preparing the wood board (110), a step of further laminating and bonding a surface material (10) to the upper surface of the wood board (110).
[0097] The surface material (10) is exemplified as one of a hard, high-density decorative plate, natural wood grain, PE, PVC, or olefin sheet, or one of HPM (high-pressure thermosetting resin decorative plate) or LPM (low-pressure thermosetting resin decorative plate) containing melamine.
[0098] In this way, when a surface material (10) is further provided on the surface of the above-mentioned wooden board (110), the beauty of the surface can be expressed in various ways, and scratches on the surface can be minimized.
[0099] Hereinafter, let us look at another embodiment of the method for manufacturing a panel with a cushioning function of the present invention. As illustrated in the attached drawing, FIG. 8, between the step of foaming the foam resin layer (130) (S30) and the step of bonding it with the adhesive (S50), a step (S40) of bonding a balance material (140) by laminating it between the wood board (110) and the nonwoven fabric (120) may be further included.
[0100] By manufacturing a panel through the step (S40) of providing a balance material (140) between the wood board (110) and the non-woven fabric (120) in this way, it is possible to prevent the wood board (110) from shrinking, expanding, or bending (cupping) in the width direction according to changes in temperature and humidity conditions in each season.
[0101] At this time, the balance material (140) may further include a pretreatment step of sanding the surface (bottom or upper and lower surfaces).
[0102] When the surface of the balance material (140) is sanded in this way, adhesive fixing strength and fixing maintenance stability can be secured between the wood board (110) and the non-woven fabric (120).
[0103]
[0104] The technical features disclosed in each embodiment of the present invention are not limited to that embodiment, and, unless they are mutually incompatible, the technical features disclosed in each embodiment may be combined and applied to different embodiments.
[0105] Therefore, although each embodiment focuses on its own technical features, each technical feature can be applied in combination with each other as long as they are not mutually incompatible.
[0106] The present invention is not limited to the above-described embodiments and the attached drawings, and various modifications and variations are possible within the scope of those skilled in the art. Therefore, the scope of the present invention should be defined not only by the claims of this specification but also by equivalents thereof.
Claims
1. Wooden board; Non-woven fabric bonded to the lower surface of the above wood board through an adhesive; and Including a foam resin layer bonded to the lower surface of the above nonwoven fabric, The above nonwoven fabric has a plurality of micropores formed, Some of the above adhesive passes through the nonwoven fabric through the micropores and is impregnated into the foam resin layer. Panel with cushioning function.
2. In paragraph 1, The above nonwoven fabric contains a cellulose component. Panel with cushioning function.
3. In paragraph 1, The above nonwoven fabric contains a jute component. Panel with cushioning function.
4. In paragraph 1, The above nonwoven fabric contains a binder formed of acrylic resin. Panel with cushioning function.
5. In paragraph 1, The above foam resin layer is directly foam-molded on the lower surface of the non-woven fabric, The above nonwoven fabric is formed by foaming the foam resin layer on the lower surface, and then bonded to the lower surface of the wood board using the adhesive. Panel with cushioning function.
6. In paragraph 1, The adhesive applied to the upper surface of the nonwoven fabric impregnates the foam resin layer through the micropores and hardens, thereby forming a penetrating bonding layer that simultaneously bonds the wood board, nonwoven fabric, and foam resin layer. Panel with cushioning function.
7. In paragraph 1, Further comprising a surface material bonded to the upper surface of the above wood board. Panel with cushioning function.
8. In paragraph 1, Further comprising a balance material between the above wood board and the above non-woven fabric. Panel with cushioning function.
9. In paragraph 1, A surface material is further bonded to the upper surface of the above wood board, and a balance material formed of the same material as the surface material is further laminated and bonded between the above wood board and the non-woven fabric. Panel with cushioning function.
10. In paragraph 9, The lower surface of the above balance material is sanded. Panel with cushioning function.
11. A method for manufacturing a panel having a cushion function, Steps to prepare the wood board; A step for preparing a nonwoven fabric having a plurality of micropores formed; A step of foaming and molding a foam resin layer on one side of the nonwoven fabric; and Including a step of bonding the lower surface of the above wooden board and the other surface of the above non-woven fabric using an adhesive, In the step of bonding using the adhesive, some of the adhesive passes through the micropores and the nonwoven fabric and is impregnated into the resin layer. A method for manufacturing a panel having a cushion function.
12. In paragraph 11, The above foaming step is, A method for manufacturing a panel having a cushioning function, comprising: a step of applying a foaming compound including a synthetic resin, a foaming agent, a plasticizer, an emulsifier, and a filler to one surface of the nonwoven fabric; and a step of rapidly reaching the foaming compound by allowing temperature (heat) required for foaming in a foaming furnace to pass through the micropores, inducing rapid gas release and dispersion in the compound, so that the micropores of the nonwoven fabric and the foaming resin layer are integrally foamed.
13. In paragraph 11, Between the step of foaming the foam resin layer and the step of bonding it with the adhesive, the method further includes the step of laminating and bonding a balance material between the wood board and the non-woven fabric. A method for manufacturing a panel having a cushion function.
Citation Information
Patent Citations
Sheet-form substrate material for constructing lose lay and work executing method for floor finishing material
JP1998266532A
Woody floor member
JP1999182006A
Floor material and its production
JP2001055671A
Polyolefine pvc-free floor covering and its manufacturing method thereof
KR1020110066017A
Sound insulation and non-slip flooring material and manufacture method thereof
KR1020180032764A