KR20050046262A - Ornament composite panel having incombustibility - Google Patents

Abstract

Semi-combustible makeup composite panel of the present invention is a shape layer 11 which is a surface layer consisting of a makeup sheet (11); Core material layer 21 which is an intermediate | middle layer which consists of several base sheets 23 which impregnated the inorganic fiber nonwoven fabric base material 25 with the liquid resin composition 27 which consists of a thermosetting resin and an inorganic filler; A reinforcement layer 31, which is a center layer composed of a reinforcement sheet 32; In the semi-combustible makeup composite panel in which the core layer 21, which is an intermediate layer made of the base sheet 23, and the shape layer 11, which is a back layer made of the makeup sheet 11, are sequentially stacked, the reinforcement layer 31 is constituted. The reinforcing sheet 32 is characterized in that the flame retardant phenolic resin composition 34 is 30 to 100% by weight impregnated or double-sided coated reinforcing sheet 32 in the kraft paper 33 having a basis weight of 60 to 300g / ㎡. The present invention provides a semi-combustible cosmetic composite panel that is not only harmless to the human body but also has a significantly improved mechanical strength, flame retardancy, impact resistance and water resistance while being light in the panel itself.

Description

Semi-Non-combustible Cosmetic Composite Panel {Ornament Composite Panel having Incombustibility}

The present invention relates to a flame-retardant and semi-combustible makeup composite panel used for building interior materials and interior partitions, more specifically, the surface layer; Core layer which is an intermediate layer; Reinforcement layer which is a center layer; Core layer which is an intermediate layer; And it relates to a semi-combustible makeup composite panel in which the shape layer that is the back layer is sequentially laminated.

The present invention is a shape layer which is a surface layer; Core layer which is an intermediate layer; Reinforcement layer which is a center layer; Core layer which is an intermediate layer; And a semi-combustible makeup composite panel in which a shape layer, which is a back layer, is sequentially laminated, wherein the reinforcing layer is composed of a reinforcing sheet impregnated with a flame retardant phenolic resin composition or coated on both sides of kraft paper.

In general, conventional flame-retardant decorative panels are plates based on inorganic materials such as asbestos, cement, calcium silicate, etc., which are coated with colored paint on their surfaces, or laminated with heat-curable resin cosmetic sheets, and heated and press-molded. It is coming true.

However, the conventional flame-retardant cosmetic panels based on the above-mentioned inorganic materials contain asbestos as a reinforcing material, and as a result, carcinogenic carcinogenic properties of the human body may be adversely affected, and have processing difficulties. In addition, defects such as surface irregularities are likely to appear on the surface, not only does not have a beautiful appearance of the processed surface, but also has a problem that the panel itself is weak to impact and vulnerable to moisture.

On the other hand, as a registered utility model No. 282866 of the present applicant, the shape layer which is a surface layer; Core layer which is an intermediate layer; Reinforcement layer which is a center layer configured in the center of the core material layer; Core layer which is an intermediate layer; And quasi-non-combustible makeup composite panels in which a shape layer, which is a back layer, is sequentially stacked. The registered utility model solves the disadvantages of the conventional flame-retardant makeup panel, but the reinforcement layer, which is the center layer formed at the center of the core material layer, is composed of a makeup sheet constituting the shape layer. There was nothing lacking.

 The present invention is to solve the problems of the conventional flame-retardant decorative panel as described above, the reinforcing layer is composed of a reinforcing sheet impregnated or double-coated with a flame-retardant phenolic resin composition in kraft paper not only harmless to the human body but also the panel itself is light and mechanical It is an object of the invention to provide a semi-combustible cosmetic composite panel with significantly improved strength and flame retardancy.

The present invention is a shape layer which is a surface layer; Core layer which is an intermediate layer; Reinforcement layer which is a center layer; Core layer which is an intermediate layer; And a semi-combustible makeup composite panel in which a shape layer, which is a back layer, is sequentially laminated, wherein the reinforcing layer is composed of a reinforcing sheet impregnated with a flame retardant phenolic resin composition or coated on both sides of a kraft paper. In addition, the reinforcing sheet 32 constituting the semi-combustible makeup composite panel of the present invention is a flame retardant phenol resin composition impregnated or double-coated in kraft paper containing 30 to 100% by weight, the flame retardant phenol resin composition is a phenol resin 100 It consists of 20 to 40 parts by weight of the flame retardant with respect to parts by weight, the kraft paper is a basis weight of 60 to 300g / ㎡, the base sheet 23 is 8 to 18% by weight based on the non-volatile content of the inorganic fiber nonwoven substrate 25 Phenolic resin of 1 ~ 30㎛ small diameter particle powder and 30 ~ 150㎛ large diameter particle powder are uniformly mixed 1: 1 in volume ratio, calcium carbonate powder having an average particle size of 35 ~ 45㎛ 82-92% by weight It characterized in that the liquid resin composition 27 is composed of 400 to 2000% by weight of the weight of the substrate 25 on a dry weight basis. Accordingly, the present invention provides a semi-combustible makeup composite panel that is not only harmless to the human body but also has a significantly improved mechanical strength.

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing an embodiment of a semi-combustible makeup composite panel according to the present invention from the top in order from the top shape layer 11, the middle layer core layer 21, the reinforcement layer 31, the core layer, the middle layer (21) and the shape layer 11 which is a back layer, FIG. 2 is an enlarged cross-sectional view of the makeup sheet which constitutes the surface layer and the shape layer 11 which is a back layer of the semi-combustible makeup composite panel of this invention, and FIG. 3 is an enlarged cross-sectional view of the base sheet constituting the core material layer 21, which is an intermediate layer of the semi-combustible makeup composite panel of the present invention, Figure 4 is a reinforcing sheet constituting the reinforcing layer 31 of the semi-combustible makeup composite panel of the present invention It is an enlarged cross section.

The semi-combustible cosmetic composite panel according to the present invention is dried by drying the base sheet 23 impregnated with an inorganic fiber nonwoven substrate 25 with a liquid resin composition composed of calcium carbonate having an average particle size of 40-50 μm as a phenol resin and a filler. The core layer 21 is formed as an intermediate layer, and the cosmetic sheet 11 in which the melamine resin 15 is impregnated or coated on the titanium paper 13 is dried and laminated on both surfaces of the core layer 21 to form a surface layer. And a back layer, and the reinforcement layer 31 which is a center layer in the center of the core layer 21 by the reinforcement sheet 32 which impregnated or coated the flame-retardant phenolic resin composition to kraft paper.

The shape layer 11 constituting the surface layer and the back layer of the semi-combustible makeup composite panel of the present invention is a cosmetic sheet (11) impregnated with 50 to 200% by weight of a typical melamine resin on a basis weight of 40 to 200 g / m 2. As the titanium paper is mixed with an inorganic component such as titanium oxide can reduce the amount of resin used to increase the flame retardancy.

The base sheet 23 constituting the core layer 21 of the present invention is an inorganic fiber nonwoven substrate 25 having a weight of 30 to 200 g / m 2 as a phenolic resin and an inorganic filler of 8 to 18% by weight based on non-volatile content. The liquid resin composition consisting of 82 to 92% by weight of calcium carbonate having an average particle size of 35 to 45 µm is impregnated to contain 400 to 2000% by weight of the nonwoven fabric substrate 25 on a dry weight basis.

As a material of the base material of the base sheet 23 constituting the core layer 21, a nonwoven fabric made of glass fiber, ceramic fiber, or alumina fiber may be used, but the fire resistance is high. Nonwoven fabrics made of ceramic fibers or alumina fibers are preferred, and nonwoven fabrics made of ceramic fibers that are excellent in soundproofing properties without sacrificing fire resistance are particularly preferred. The nonwoven fabric is a non-woven fabric weighing 30 ~ 200 g / ㎡ formed of a nonwoven fabric, bonded with a binder such as epoxy resin, acrylic resin, polyvinyl alcohol resin after cutting a fiber diameter of 6 ~ 30 ㎛ to a length of 10 to 50 mm Non-woven fabrics of less than 30 g / m 2 have a disadvantage in that they are difficult to handle in processes such as impregnation (or coating) and molding due to insufficient strength, and more than 200 g / m 2 impregnation (or coating) properties, work It is not preferable because of the disadvantages of inferiority and heavy weight.

As a resin component of the liquid resin composition which is impregnated into the base material of the base material sheet 23 which comprises the said core material layer 21, as a typical phenol resin, for example, 25-45 weight% of phenols and 30-60 weight of formaldehyde %, Plasticizer 2 to 5% by weight, liquid condensate reacted with 10 to 15% by weight of distilled water.

Calcium carbonate is used as a filler which comprises the said liquid resin composition. Calcium carbonate is lighter than other inorganic fillers and has excellent heat resistance and thermal insulation, so it does not burn and does not transmit heat in the event of heat generated by a fire, thereby improving the flame retardant effect. The calcium carbonate is preferably a calcium carbonate powder having an average particle size of 35 to 45 µm by uniformly mixing the small-diameter particle powder having a particle size of 1 to 30 μm and the large-diameter particle powder having a size of 30 to 150 μm in a 1: 1 ratio. By uniformly mixing and combining the large diameter particles and the small diameter particles, the gap can be minimized by the shortest distance packing. When the small diameter particles are used alone, the uniformity of the base sheet constituting the core layer 21 can be guaranteed, but there is a drawback that causes problems during the mixing process of the liquid resin composition, and the large diameter particles are used alone. In this case, there is a drawback that the uniformity of the base sheet constituting the core layer 21 is lowered and flame retardancy is lowered due to a reduction in particle surface area. Therefore, the large diameter particles have an average particle diameter of 30 to 150 μm and the small diameter particles are mixed by mixing 50:50 in a volume ratio in order to effectively perform the shortest distance packing. It is preferable to adjust and use so that average particle size of calcium carbonate may be about 35-45 micrometers. If the diameter of the small-diameter particles is less than 1 μm or if only the small-diameter particles are used alone, the mixing process of the resulting resin composition is deteriorated, which is undesirable, and the average particle diameter of the large-diameter particles exceeds 150 μm or the large diameter. When only particles are used alone, it becomes difficult to manipulate the base sheet for constituting the core layer, and the flame retardancy is poor due to the reduction of the surface area of the particles. In addition, the specification of the calcium carbonate used in the present invention is 43 ± 1% of lg-Loss, 53.5 ± 1% of CaO, 1.5% or less of SiO ₂ , Al ₂ O ₃ based on the component analysis according to the test method of KSE 3071. Is 0.3% or less, Fe ₂ O ₃ is 0.2% or less, MgO is 1.5% or less.

The liquid resin composition is 10 to 40% by weight of a solvent of water or alcohol in a mixture consisting of 8.0 to 18.0% by weight of phenol resin (dry basis) and 82 to 92% by weight of calcium carbonate having an average particle size of 35 to 45 µm. Preferably, the composition is impregnated with the nonwoven fabric which is a base sheet as it is, or a diluent such as water or alcohol is further added to the composition to impregnate the nonwoven fabric which is a base sheet. If the content of the phenol resin is less than 8% by weight based on the dry matter, the interlayer peeling may occur due to the lack of bonding strength, and when the content of the phenol resin exceeds 18% by weight, the amount of the resin is increased, resulting in a low flame retardancy.

The content of the resin composition attached to the substrate 25 is impregnated so that 400 to 2000% by weight of the weight of the nonwoven fabric as the substrate is attached based on the dry weight (non-volatile component). If the adhesion amount is less than 400% by weight, a large amount of base sheets must be laminated to meet the specified thickness, and the cost is increased. When the adhesion amount is higher than 2000%, the drying time is long, the productivity decreases, and the interlayer adhesion strength after forming by pressing This is a disadvantage because it is easy to weaken.

The filler constituting the liquid resin composition may be used by replacing a portion of calcium carbonate with aluminum hydroxide, magnesium hydroxide, ocher, etc. in order to improve the processability of the user after press molding, wherein the composition of the liquid resin composition is phenol To a mixture of 8.0 to 18.0% by weight of resin (dry basis), 42 to 92% by weight of calcium carbonate and 50% by weight of the aluminum hydroxide, magnesium hydroxide or ocher, and 10 to 40% by weight of a solvent, water or alcohol It is preferable to make a composition, and the liquid resin composition comprised as mentioned above can be used as it is, or it can further use diluents, such as water and alcohol.

In the case of the alternative inorganic filler, it is preferable to use an appropriate particle size of 10 to 100 μm, and when the particle size of less than 10 μm is used, the oil and oil absorbency of the resin and the solvent is strong, so that the viscosity of the composition is increased, resulting in poor workability. Due to the large particle size after product molding, surface smoothness may be degraded.

The reinforcing layer 31 constituting the center layer is composed of a reinforcing sheet 32 impregnated or coated with a flame retardant phenolic resin composition 34 in an amount of 30 to 100% by weight on a basis of a conventional kraft paper 33 having a basis weight of 60 to 300 g / m 2. do. Titanium paper, which is a base material of a conventional reinforcing layer, is made of short fibers and contains 10 to 40% by weight of titanium oxide such as titanium dioxide, and thus has flame retardancy or printing aptitude, but has weakness in terms of strength. Accordingly, in the present invention, kraft paper (paper) made of long fibers for strength reinforcement is configured to be thicker than conventional titanium paper. The flame retardant phenol resin composition is a 20 to 40 parts by weight of the flame retardant is uniformly dispersed in 100 parts by weight of the phenol resin condensate. The flame retardant constituting the flame retardant resin composition is a phosphorus or nitrogen-based liquid or solid flame retardant. Flame retardants usable in the present invention may be a liquid flame retardant containing phosphorus and nitrogen, Melflam 131 A of SKW Trostberg of Germany or dicyandiamide as a solid flame retardant or mixtures thereof. For the synergistic effect of the flame retardant, a mixture of the liquid flame retardant and the solid flame retardant is preferable, and the composition ratio is preferably a mixture of 15 to 30 parts by weight of the liquid flame retardant and 5 to 10 parts by weight of the solid flame retardant.

The base sheet 23 constituting the core layer 21 as described above and the reinforcing sheet 32 constituting the reinforcing layer 31 may be laminated in one or more sheets in consideration of the thickness of the panel, and the front and back surfaces thereof. The semi-combustible makeup composite panel of the present invention is produced by laminating each of the cosmetic sheets 11 one by one, heating, pressurizing and curing in a multi-stage press in a conventional manner. In addition, the mirror surface plate, embossing plate, etc. are superimposed on the product surface in order to give the embossing effect of the surface layer and a protective film may be attached to prevent scratches on the surface of the product after molding.

Hereinafter, the constitution and effect of the present invention will be described by examples.

 Example 1

Weighing 60 g / m2 of E-grass fiber nonwoven fabric treated with acrylic resin binder, 12% by weight of phenolic resin based on nonvolatile components, large diameter particles with particle size distribution of 30 to 150 µm and small diameter particles of 1 to 30 µm Was impregnated into the liquid resin composition mixed with 88% by weight of calcium carbonate having an average particle size of 45 μm uniformly mixed at 1: 1, and dried to obtain a base sheet having 800% by weight of the nonwoven fabric weight. On the other hand, 145% impregnated and dried 80g / ㎡ printing shape paper in which the titanium oxide is mixed in the melamine resin to prepare a cosmetic sheet. In addition, 160 g / m 2 of kraft paper was added to 100 parts by weight of the non-volatile component-based phenol resin condensate in a phenolic resin composition in which 15 parts by weight of Melflam 131 A as a liquid flame retardant and 5 parts by weight of dicyandiamide as a solid flame retardant were uniformly mixed and dispersed. Impregnated and dried to prepare a reinforcing sheet with 40 parts by weight based on 100 parts by weight of kraft paper.

Lay the base sheet, makeup sheet, and reinforcement sheet prepared as above, one makeup sheet, four substrate sheets, 20 reinforcement sheets, four substrate sheets, and one makeup sheet, stacked on both sides with stainless mirror plates. A non-combustible cosmetic composite panel was obtained by curing at 150 ° C. and 100 kgf / cm 2 for 40 minutes under hot pressure. Physical property test results for the semi-combustible cosmetic panel of the present invention prepared as described above are shown in Table 1 below.

Example 2

Average particle size using 18 wt% non-volatile phenolic resin, large diameter particles with a particle size distribution of 30 to 150 µm, and small diameter particles of 1 to 30 µm in a ceramic fiber nonwoven fabric of 60 g / m2 A liquid resin composition containing 82 wt% of calcium carbonate having a thickness of 45 μm was impregnated and dried so that 800 wt% (based on the dry matter) of the weight of the nonwoven fabric was attached to the base sheet. On the other hand, 145% impregnated and dried 80g / ㎡ printing shape paper in which the titanium oxide is mixed in the melamine resin to prepare a cosmetic sheet. In addition, 200 g / m 2 of kraft paper was added to a phenolic resin composition in which 20 parts by weight of Melflam 131 A, a liquid flame retardant, and 7 parts by weight of dicyanic amide, a solid flame retardant, were uniformly mixed and dispersed in 100 parts by weight of a non-volatile component phenol resin condensate. Impregnated and dried to prepare a reinforcing sheet having 27 parts by weight based on 100 parts by weight of kraft paper.

Lay the base sheet, makeup sheet, and reinforcement sheet prepared as above, one makeup sheet, four substrate sheets, 20 reinforcement sheets, four substrate sheets, and one makeup sheet, stacked on both sides with stainless mirror plates. A non-combustible cosmetic composite panel was obtained by curing at 150 ° C. and 100 kgf / cm 2 for 40 minutes under hot pressure. Physical property test results for the semi-combustible cosmetic panel of the present invention prepared as described above are shown in Table 1 below.

Example 3

Average particle size using 18 wt% non-volatile phenolic resin, large diameter particles with a particle size distribution of 30 to 150 µm, and small diameter particles of 1 to 30 µm in a ceramic fiber nonwoven fabric of 60 g / m2 A liquid resin composition containing 82 wt% of calcium carbonate having a thickness of 45 μm was impregnated and dried so that 800 wt% (based on the dry matter) of the weight of the nonwoven fabric was attached to the base sheet. Meanwhile, the cosmetic sheet 11 was prepared by impregnating and drying 80 g / m 2 of the printed shape paper containing titanium oxide in the melamine resin and drying it. In addition, 30 parts by weight of Melflam 131 A, a liquid flame retardant, and 10 parts by weight of dicyandiamide, a solid flame retardant, were uniformly mixed and dispersed in 100 parts by weight of the non-volatile component phenol resin condensate, and 300 g / m 2 of kraft paper was kraft paper. Impregnation and drying to prepare a reinforcing sheet attached to 40 parts by weight based on 100 weight of kraft paper.

Lay the base sheet, makeup sheet, and reinforcement sheet prepared as above, one makeup sheet, six substrate sheets, 20 reinforcement sheets, and one makeup sheet, stacked on both sides with a stainless mirror plate, and 150 ° C, 100kgf / A nonflammable make-up composite panel was obtained by curing under thermal pressure at 40 cm 2 for 40 minutes. Physical properties of the semi-combustible makeup composite panel of the present invention prepared as described above are shown in Table 1 below.

Example 4

A base sheet and a makeup sheet were obtained in the same manner as in Example 2. On the other hand, 100 parts by weight of the non-volatile component-based phenol resin condensate, 15 parts by weight of Melflam 131 A, a liquid flame retardant, and 5 parts by weight of dicyandiamide, a solid flame retardant, were uniformly mixed and dispersed in a phenol resin composition of 200 g / m 2. Impregnated and dried to prepare a reinforcing sheet having 20 parts by weight based on 100 parts of kraft paper.

Lay the base sheet, makeup sheet, and reinforcement sheet prepared as above, one makeup sheet, four substrate sheets, 20 reinforcement sheets, four substrate sheets, and one makeup sheet, stacked on both sides with stainless mirror plates. A non-combustible cosmetic composite panel was obtained by curing at 150 ° C. and 100 kgf / cm 2 for 40 minutes under hot pressure. Physical property test results for the semi-combustible cosmetic panel of the present invention prepared as described above are shown in Table 1 below.

Example 5

A base sheet and a makeup sheet were obtained in the same manner as in Example 2. On the other hand, 100 parts by weight of the non-volatile component-based phenol resin condensate, 30 parts by weight of Melflam 131 A, a liquid flame retardant, and 10 parts by weight of dicyandiamide, a solid flame retardant, were uniformly mixed and dispersed in a phenol resin composition of 200 g / m 2. Impregnation and drying to prepare a reinforcing sheet attached to 40 parts by weight based on 100 weight of kraft paper.

Lay the base sheet, makeup sheet, and reinforcement sheet prepared as above, one makeup sheet, four substrate sheets, 20 reinforcement sheets, four substrate sheets, and one makeup sheet, stacked on both sides with stainless mirror plates. A non-combustible cosmetic composite panel was obtained by curing at 150 ° C. and 100 kgf / cm 2 for 40 minutes under hot pressure. Physical property test results for the semi-combustible cosmetic panel of the present invention prepared as described above are shown in Table 1 below.

Comparative Example 1

Average particle size using 18 wt% non-volatile phenolic resin, large diameter particles with a particle size distribution of 30 to 150 µm, and small diameter particles of 1 to 30 µm in a ceramic fiber nonwoven fabric of 60 g / m2 A liquid resin composition containing 82 wt% of calcium carbonate having a thickness of 45 μm was impregnated and dried so that 800 wt% (based on the dry matter) of the weight of the nonwoven fabric was attached to the base sheet. Meanwhile, a cosmetic sheet was prepared by impregnating and drying 145% of a 80 g / m 2 printed shape paper containing 20 wt% of titanium oxide mixed with melamine resin.

The base sheet, makeup sheet, and reinforcing sheet prepared as above were laminated one by one from the top, a sheet of four sheets, a sheet of base sheets, 20 sheets of makeup sheets, four sheets of sheets, and one sheet of makeup sheets as reinforcement layers, and stainless mirror plates on both sides. Then, a non-combustible makeup composite panel was obtained by hot pressing and curing at 150 ° C. and 100 kgf / cm 2 for 40 minutes. Physical property test results for the semi-combustible cosmetic panel of the present invention prepared as described above are shown in Table 1 below.

Comparative Example 2

A base sheet 23 was obtained in the same manner as in Comparative Example 1. A cosmetic sheet 11 was prepared by impregnating and drying 145% of a printing paper of 80 g / m 2 mixed with titanium oxide in a melamine resin. Further, 200 g / m 2 of kraft paper was impregnated into the non-volatile component-based phenol resin condensate and dried to prepare a reinforcing sheet having 40 parts by weight of the phenol resin condensate with respect to 100 weight of the kraft paper.

The base sheet and the makeup sheet prepared as described above were stacked one by one on the basis of the makeup sheet, four substrate sheets, 20 reinforcement sheets, four substrate sheets, and one cosmetic sheet, and the stainless mirror plates were stacked on both sides at 150 ° C., A non-combustible make-up composite panel was obtained by curing at 100 kgf / cm 2 for 40 minutes. The panel was coated with an epoxy adhesive on a 9 mm thick gypsum board and pressure cured at room temperature to produce a 16 mm thick panel, and the physical property test results for the semi-combustible makeup composite panel are shown in Table 1 below.

Specimen / Test Items Example 1 Example 2 Example 3 Example 4 Example 5 Comparative Example 1 Comparative Example 2 nonflammable Surface test pass pass pass pass pass pass pass Additional test pass pass pass pass pass fail fail Gas hazard (more than 9 minutes) 12 minutes 11 minutes 11 minutes 12 minutes 12 minutes 10 minutes 11 minutes Impact resistance (more than 1m / 1kg ball) 1.0m 1.2m 1.4m 1.2m 1.3 m 0.6m 1.5m Thickness (mm) 6 6 7 5 6 5 16

* The test is based on flame retardant class 2 of KS F 2271 (Test method for flame retardancy of interior materials and structures of building).

** The impact resistance test is based on the standard of KS F 3127 (built-in plastic decorative boards).

From the above Examples and Comparative Examples (Table 1), the examples of using the kraft paper as the base material of the reinforcing sheet of the reinforcing layer (Comparative Example 2 and Example) were much better in terms of impact strength than the example using the titanium paper (Comparative Example 1). It can be seen that when kraft paper is used as the base material of the reinforcing sheet of the reinforcing layer, the thicker the thickness, the higher the strength (Example 1 <Example 2 <Example 3). When used, it can be seen that the effect of the flame retardant content on the strength (Examples 4 and 5) is not large.

The semi-combustible makeup composite panel of the present invention has an excellent effect in terms of impact strength compared to a panel using titanium paper by using kraft paper as a base material of the reinforcing sheet of the reinforcing layer.

In addition, it is not only harmless to the human body, but also has an effect of easy processing and obtaining a beautiful appearance.

1 is a cross-sectional view of one embodiment of a semi-combustible cosmetic composite panel of the present invention.

Figure 2 is an enlarged cross-sectional view of the makeup sheet constituting the shape layer that is the surface layer and the back layer of the semi-combustible makeup composite panel of the present invention.

Figure 3 is an enlarged cross-sectional view of the base sheet constituting the core layer which is the intermediate layer of the semi-combustible makeup composite panel of the present invention.

Figure 4 is an enlarged cross-sectional view of the reinforcing sheet constituting the reinforcing layer which is the center layer of the semi-combustible makeup composite panel of the present invention.

Explanation of symbols on the main parts of the drawings

11: shape layer (or cosmetic sheet) 13: titanium paper

15 melamine resin layer 21 core material layer

23: substrate sheet 25: substrate

27: resin composition layer 31: reinforcing layer

32: reinforcing sheet 33: kraft paper

34 phenolic resin composition layer 100 cosmetic panel

Claims (5)

Shape layer 11 which is the surface layer which consists of the makeup sheet 11; Core material layer 21 which is an intermediate | middle layer which consists of several base sheets 23 which impregnated the inorganic fiber nonwoven fabric base material 25 with the liquid resin composition 27 which consists of a phenol resin and an inorganic filler; A reinforcement layer 31, which is a center layer composed of a plurality of reinforcement sheets 32; In a semi-combustible makeup composite panel in which a core layer 21, which is an intermediate layer composed of several sheets of the base sheets 23, and a shape layer 11, which is a back layer composed of a makeup sheet 11, are sequentially stacked, the reinforcement layer being the center layer. A semi-combustible makeup composite panel characterized in that the reinforcing sheet (32) constituting (31) is impregnated with or coated with a flame-retardant phenolic resin composition on kraft paper. The semi-combustible makeup composite panel according to claim 1, wherein the reinforcing sheet (32) contains 30 to 100 wt% of a flame retardant phenol resin composition impregnated or coated on both sides of kraft paper. The semi-combustible makeup composite panel according to claim 1 or 2, wherein the kraft paper has a basis weight of 60 to 300 g / m 2. The semi-combustible cosmetic composite panel according to claim 1, wherein the flame retardant phenol resin composition comprises 20 to 40 parts by weight of a flame retardant based on 100 parts by weight of a phenol resin. The inorganic sheet non-woven substrate 25 is 8-18% by weight of phenol resin and 1-30 μm of small-diameter particle powder and 30-150 μm. The large-diameter particle powder is uniformly mixed at a volume ratio of 1: 1, and the liquid resin composition 27 composed of calcium carbonate powder having an average particle size of 35-45 μm 82-92 wt% is based on the dry weight. Semi-combustible cosmetic panel, characterized in that it contains 400 to 2000% by weight of the weight.