KR19980070843A - Wood finish - Google Patents

Abstract

The wood finishing material according to an embodiment of the present invention is impregnated with a thermosetting resin on a sheet substrate which can be impregnated with resin, and then laminated on a large plate, and the sheet is impregnated with a resin material capable of impregnation with resin. As a wood finish material bonded to each other,

The thermosetting resin is characterized by its phenolic resin having a flow rate of 2 to 50% in a prepreg state.

Accordingly, since the phenol resin having a flow rate of 2 to 50% in the prepreg state is used as the thermosetting resin, the thermosetting resin of the sheet is impregnated with the cosmetic material and the scratch resistance of the cosmetic material is improved. In addition, no adhesive is required for adhering the cosmetic material on the substrate, and since the sheet and the cosmetic material can be reliably attached to the substrate simply by heat pressing, manufacturing is also easy. In addition, the temperature is excellent in dimensional stability due to the presence of the sheet even with a change in humidity, and also improves in strength. In addition, the use of a phenol resin dissolved or dispersed in water or an organic solvent is inexpensive, easy to manufacture, and improves the scratch resistance.

Description

Wood finish

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to wood finishing materials used for surface finishing materials such as floors, walls, ceilings, surface materials such as pillars, cabinets, furniture, interior materials of automobiles, and the like.

In recent years, wood finishing materials have been rapidly increasing in view of the prevention of the occurrence of ticks, but there is a growing demand for improvement of the scratch resistance of the surface. The general wood finishing material is made by attaching a wooden pattern plate (cosmetic material) for applying cosmetics on a large plate, and a WPC treatment has been developed to prevent scratches on the surface of the wooden pattern plate. WPC is an abbreviation of wood, plastic, and combination. The WPC is placed in a heating and pressurizing container, and the plastic impregnated in the WPC is heat-pressed onto the adhesive coated base plate.

The conventional WPC treatment has the disadvantage that the price is high.

Therefore, an object of the present invention is to provide a wood finishing material which is inexpensive and excellent in scratch resistance. In order to achieve this purpose, a sheet base which can be impregnated with resin is impregnated with a thermosetting resin, and then laminated on a base plate. As the wood finishing material, a thermosetting resin is a phenol resin having a flow rate of 2 to 50% in a prepreg state. In the wood finishing material as described above, the sheet is impregnated with a thermosetting resin so as to have a solid content of 50 to 500 g / m 2 to the sheet base material, and then the sheet is semi-cured. In addition, as a wood finishing material as described above, the sheet is impregnated with a thermosetting resin in a glass nonwoven fabric composed of glass fibers alone or fibers mixed with other fibers. The tensile breaking strength of the sheet is 10 kgf or more after hot pressing for 5 minutes at a press temperature of 150 ° C. and a press pressure of 10 Kgf / cm 2.

1 is a cross-sectional view showing an embodiment of the present invention.

2 is an explanatory diagram showing a manufacturing example of a sheet;

3 is a graph showing the relationship between flow rate and scratch depth.

The following describes a preferred embodiment of the present invention with reference to the drawings.

In the embodiment of the present invention, as shown in Fig. 1, a sheet 2 containing a thermosetting resin is stuck on the base plate 1, and a cosmetic material 3 is attached to the sheet 2.

As the base 1, a material which can be impregnated with resin, for example, plywood, wood fiber board, particle board, wafer board, or the like, or a composite board thereof is suitably used. The sheet 2 is impregnated with a thermosetting resin in a sheet base 20 (see Fig. 2) made of paper, woven fabric, nonwoven fabric, or the like. As the sheet base 20, a paper impregnated with a thermosetting resin can be suitably used gypsum cardboard, kraft paper, reclaimed paper, or the like. As the woven fabric, a fabric such as organic fiber fabric, glass fiber, carbon fiber, inorganic whisker, rock fiber, rock wool or other inorganic fiber fabric, or amorphous metal fiber can be suitably used. The nonwoven fabric is a sheet-like fabric made by bonding raw materials, such as glass fibers, cotton, and resin, or entangled with each other, or using both thereof, using mechanical, chemical, heating, or solvents. As a fiber raw material, the thing which mated the fiber cut | disconnected to 3-50 mm by the manufacturing method of wet paper or dry nonwoven fabric with binder resin is suitable for use. Fiber raw materials include glass fibers alone or inorganic fibers such as glass fibers, aluminum fibers, aluminum silica fibers, carbon fibers, and metal fibers, aramid fibers, resin fibers, vinylon fibers, nylon fibers, polyester fibers, polypropylene fibers, polyethylene fibers, and the like. Can be used alone or in combination of several organic fibers. In consideration of the strength of the sheet substrate and the ease of resin impregnation, it is appropriate to use glass fibers. Moreover, it is preferable that basis weight is 10-1000 g / m <2> from a viewpoint of impregnation, defoaming property, sheet base strength, handing, and the flaw resistance of a molded article, and preferable basis weight is 5-250 g / m <2>. When less than 10 g / m <2>, flaw resistance is weak, and when more than 1000 g / m <2>, impregnation becomes difficult. These fibers have less reinforcing effect in short fibers of 3 mm or less, while uniform sheeting is difficult in long fibers exceeding 50 mm, resulting in an excellent reinforcing effect. Moreover, it is preferable from the viewpoint of strength (reinforcement) and uniformity of a nonwoven fabric that short fibers of 3 to 15 mm are 20 to 100% of all fibers. If the short fibers are less than 20%, there is no uniform nonwoven fabric. In addition to these fiber materials, mixing of short fiber cellulose pulp or the like is not a problem. In the case of using glass fibers, the reinforcing effect can be enhanced by coating the fiber surface with a silane capping agent.

As the thermosetting resin to be impregnated into the sheet base 20, a resin having the necessary properties as a surface material is selected. For example, a phenol resin obtained by the reaction between phenols and aldehydes, and a curing agent is added to an oligomer having a reactive epoxy group at its terminal. Examples thereof include epoxy resins, thermosetting ethylene vinyl acetate copolymers, unsaturated polyester resins, urea resins, melamine resins, urethane resins, urea resins, DAP (diaryl butyrate) resins, and unsaturated polyester resins. have. These resins are mixed singly or in combination with the fiber material mainly by combining. As the resin solution to be impregnated, any of an aqueous solution, a solvent varnish and an emulsion zone may be used, or a method of dispersing a solid resin powder may be used. Among these, it is preferable to use what melt | dissolved or disperse | distributed to water, alcohol, etc. from a cost and safety viewpoint. When alcohol is used, MeOH is suitable because it has a low boiling point and is easy to dry.

In addition, these various fillers such as steering acid, ziputyl stone glaurate, carbon black, calcium carbonate, titanium white, mica, glass spheres, aluminum hydroxide, antimony oxide, tri (2,3 g-propropyl) hosepate, aliphatic Thermal stabilizers such as sulfonate and higher alcohol esters, reinforcing agents, flame retardants, antistatic agents and the like may be used in combination.

In the case where the phenol resin is selected as the thermosetting resin, alkylamine, ammonia, sodium hydroxide, barium hydroxide and the like are preferable as a catalyst required for the production of the phenol resin. In particular, the alkylamine and ammonia have a higher molecular weight than the other two, and have low water solubility in molecular structure, so that the water resistance after pasting is remarkably improved. At this time, it is preferable that the phenol resin is easily dissolved or dispersed in a solvent such as water or an organic solvent so as to have a solid content of 20 to 80 wt%. Organic solvents for dissolving or decomposing phenolic resins have high ability to dissolve phenolic resins, and thus, lower alcohols such as methanol and ethanol, ketones such as acetone and methyl ethyl ketone, and one or two or more of them are mixed. Used. In particular, low alcohols, especially methanol, having a low boiling point in consideration of the tendency to dry, are suitably used. If the solid content is less than 20% by weight, it is difficult to impregnate the required amount. If the solid content is more than 80% by weight, impregnation becomes difficult due to the viscosity increase.

The thermosetting resin is a phenol resin having a flow rate of 2 to 50%, more preferably 5 to 20% in a prepreg state. If the flow rate exceeds 50%, the resin will stick out from the side at the time of pressing, so that sufficient flame resistance cannot be produced. If the flow rate is less than 3%, the compounding of the base material and the resin is insufficient, and the staining on the surface of the cosmetic material 3 at the time of press becomes less, so that sufficient flame resistance cannot be obtained. In the prepreg state, the flow rate of the phenol resin is the ratio of the protruded resin (protruded resin / all resin X 100) when 10 sheets of prepreg sheets having a diameter of 5 cm are stacked and pressed under predetermined conditions. The relationship between this flow rate and the depth of cut is shown in the graph of FIG.

The viscosity of the phenol resin contained in the prepreg sheet is 0.1-50 poise at a temperature of 25 ° C., and if the viscosity is less than 0.1 poise, it is not possible to impregnate an amount sufficient to produce scratch resistance, Because it sticks out, it does not have enough resistance. If the viscosity exceeds 50 poise, uniform impregnation of the resin becomes difficult, and less staining of the surface of the cosmetic material 3 at the time of pressing results in insufficient scratch resistance.

The phenol resin used as the thermosetting resin is impregnated into the sheet base 20 so as to have a solid content of 50 to 500 g / m 2, preferably 150 to 350 g / m 2. If it is less than 50g / m 2, it will not be able to exhibit sufficient flaw resistance, and if it is not less than 500g / m 2, it will take time to cure and protrude from the end. In the impregnation method, for example, as shown in Fig. 2, the sheet base 20 is immersed in a cloth of a petroleum resin solution 10 with a roller, and then dried under a predetermined condition to obtain a sheet 2 in a prepreg state.

As the sheet 2, one of paper, a woven fabric, and a nonwoven fabric is used as the sheet base 20, without using a single material impregnated with a thermosetting resin, for example, a plurality of sheets, or a sheet of paper attached thereto. Can also be. For example, when an uncured phenolic resin is impregnated into a glass nonwoven fabric and a paper paste is used, the strength and dimensional stability of the whole are greatly improved.

The thermosetting resin impregnated into the sheet base 20 is preferably in a semi-cured state, that is, a prepreg state after impregnation, and the sheet 2 in the prepreg state is superimposed on the base plate 1 and the cosmetic material on the sheet 2. By superimposing (3) and heat-pressing them, they adhere firmly to each other. Prepreg is a semi-cured molding material before the end of curing, leaving the adhesive and moldability of reinforced plastics made by mixing fiber reinforcement with thermosetting resins and other thermoplastic resins, colorants, curing catalysts, etc. Is 30 seconds to 800 seconds at a set temperature of 150 ° C.

As a drying condition for the semi-cured state after the impregnation of the thermosetting resin impregnated into the sheet base 20, the lower limit of the solvent fraction of the sheet 2 is 0% by weight, preferably 3% by weight or more, more preferably 5% by weight. The upper limit is 15 weight% or less, More preferably, you may be 10 weight% or less. If it is not 15% by weight or less, the sheets will block each other. Table 1 also shows the relationship between drying time and temperature. The thermosetting resin used in Table 1 was a phenol resin dissolved or dispersed in an organic solvent, and methanol was used as the organic solvent. (Circle) shows that the state of the completed prepreg sheet is available, and (triangle | delta) shows the unusable X which is not preferable at use.

Time (minutes) Temperature (℃) One 3 5 7.5 10 12.5 15 20 30 80 X X X X X △ △ ○ ○ 90 X X X △ △ ○ ○ ○ △ 100 X △ ○ ○ ○ ○ △ △ X 110 △ ○ ○ ○ △ △ △ X X 120 △ ○ ○ △ △ △ X X X

Table 2 shows the relationship between the drying time and the temperature of the phenol resin dissolved or dispersed in water as the thermosetting resin. ○ in the table indicates that the state of the finished prepreg sheet is usable, and Δ indicates that the state of the prepreg sheet is not preferable for use.

Time (minutes) Temperature (℃) One 3 5 7.5 10 12.5 15 20 30 80 X X X X X X △ ○ ○ 90 X X X X △ ○ ○ ○ △ 100 X X △ ○ ○ ○ △ △ X 110 X △ ○ ○ △ △ △ X X 120 △ ○ ○ △ △ △ X X X

As can be seen from Tables 1 and 2, when a phenol resin dissolved or dispersed in water or an organic solvent is used, a sheet in a semi-cured state can be obtained with a drying time of 3 to 30 minutes at a temperature of 80 to 120 ° C.

The tensile strength of the prepreg sheet is preferably 10 kgf / cm 2 or more at break strength in order to provide sufficient scratch resistance. If it is less than 10 kgf / cm 2, sufficient scratch resistance cannot be obtained. The measurement of breaking strength was carried out with the sheet 2 in a prepreg state sandwiched between two sheets of release paper, hot pressed under conditions of 150 ° C. for 5 minutes and 10 kgf / cm 2 to cure the resin. Such measurement was performed according to JIS K 7054.

The decorative material 3 is suitably used, for example, a wood thin plate for makeup application, a pre-shape, or the like, or a paper on which uneven processing has been performed. The material of the cosmetic material 3 is also selected so that resin can be impregnated.

As press conditions of the base plate 1, the prepreg 2, and the cosmetic material 3, temperature 130-180 degreeC is preferable, More preferably, it is 140-160 degreeC. If it is lower than 130 ° C., the curing of the resin may not be sufficient and it may not exhibit flaw resistance. If it is higher than 180 ° C., the curing of the resin may be too fast, resulting in insufficient adhesion between the base 1 or the cosmetic material 3 and the warpage of the base 1. This is because it grows. Moreover, as a pressure, 1-20 kgf / cm <2> is preferable, More preferably, it is 5-15 kgf / cm <2>. If it is lower than 1 kgf / cm 2, since it is not enough to dye with the cosmetic material 3 of resin, the flaw resistance becomes low, and when larger than 20 kgf / cm 2, problems such as warpage of the base plate 1 become large. The press time is preferably 2.5 to 20 minutes, more preferably 3 to 12.5 minutes. If it is shorter than 2.5 minutes, the curing of the resin is not sufficient and the scratch resistance is lowered. If it is longer than 20 minutes, the resin is deteriorated, the scratch resistance is also lowered, and the warp of the base plate 1 is also increased.

Example 1

Plywood (1) Plywood with a thickness of 12 mm

Cosmetic material (3) ... 0.3mm-thick veneer

Glass nonwoven fabric ..... The glass nonwoven fabric of the basis weight 100g / ㎡ which consists of a mixed fiber of short fibers and long fibers, impregnated with a 40% solid dispersion of water-based phenolic resin to obtain a solid content of 200g / ㎡ After impregnation, it dried at 105 degreeC for 10 minutes, and obtained the semi-cured sheet (2). The flow rate at this time was 17%.

The sheet 2 was superimposed on the base plate 1, and the cosmetic material 3 was superimposed on the sheet 2 to prepare a wood finishing material at a press temperature of 150 ° C., a pressure of 10 kgf / cm 2, and a press time of 5 minutes.

Example 2

The same base plate 1 and the cosmetic material 3 as in Example 1 were used, and the same glass nonwoven fabric as in Example 1 was impregnated with a phenolic resin of 60% solid content of methanol to obtain a solid having a solid content of 200 g / m 2, and after impregnation 105 It dried at 2.5 degreeC for 2.5 minutes, and was made into the semi-hardened state. The flow rate at this time was 21%. Press conditions at the time of adhesion were made into 10 minutes of press time, and the other conditions were made the same as Example 1.

Comparative Example 1

Using the same base plate 1 and the cosmetic material 3 as in Example 1, the glass nonwoven fabric as in Example 1 was impregnated with a 40% solids-based dispersion-based phenolic resin to obtain a solid having a solid content of 200 g / m 2, and then 105 ° C It dried for 20 minutes at and obtained the semi-cured sheet (2). The flow rate at this time was 1.5%. Press conditions at the time of adhesion were made into the same conditions as in Example 1.

The steel ball drop test was carried out in Examples 1 and 2 and Comparative Example 1 described above in accordance with JIS A-1408. This test measures the depth of dent of the sample when the No. 2 steel ball (540 g) was dropped on the sample. The sample is placed on the sand and fully supported. The results were as shown in Table 3 below.

Depth of cut (mm) Example 1 0.16 Example 2 0.15 Comparative Example 1 0.24

Example 3

Plywood (1) Plywood with a thickness of 12 mm

Cosmetic material (3) ... 0.3mm-thick veneer

Glass non-woven fabric ... ························ 2 m <2> of thing was obtained and it dried for 10 minutes at 105 degreeC after impregnation, and obtained the semi-cured sheet (2).

The sheet 2 was superimposed on the base plate 1, and the cosmetic material 3 was superimposed on the sheet 2 to prepare a wood finishing material at a press temperature of 150 ° C., a pressure of 10 kgf / cm 2, and a press time of 5 minutes.

Example 4

Using the same base plate 1 and the cosmetic material 3 as in Example 1, the same glass nonwoven fabric as in Example 1 was impregnated with a phenol resin having a viscosity (25 ° C.) of 2.2 poise to obtain a solid having a solid content of 200 g / m 2. After drying at 105 ° C. for 2.5 minutes, a semi-cured state was obtained. Press conditions at the time of adhesion were made into the same conditions as in Example 1.

Comparative Example 2

The same base plate 1 and the cosmetic material 3 as in Example 3 were used, and the glass nonwoven fabric as in Example 3 was impregnated with a phenol resin having a viscosity (25 ° C.) of 0.05 poise, but sufficient amount to give sufficient scratch resistance. It was impossible to impregnate.

The steel ball drop test was performed in accordance with JIS A-1408 for Examples 3 and 4 and Comparative Example 2 described above. This test measures the depth of dent of the sample when the No. 2 steel ball (540 g) was dropped on the sample. The sample is left on the sand and fully supported. The results were as shown in Table 4 below.

Depth of cut (mm) Example 3 0.15 Example 4 0.15 Comparative Example 2 0.24

Example 5

Plywood (1) Plywood with a thickness of 12 mm

Cosmetic material (3) ... 0.3mm-thick veneer

Glass nonwoven fabric ······ The glass nonwoven fabric of a basis weight of 100 g / m2 composed of a mixed fiber of short fibers and long fibers is impregnated with a 40% solids-based water-soluble phenolic resin, and the solid content is 300 g / m 2. Was obtained and dried at 105 ° C. for 10 minutes to obtain a semi-cured sheet (2).

The sheet 2 was superimposed on the base plate 1, and the cosmetic material 3 was superimposed on the sheet 2 and manufactured at a press temperature of 150 ° C., a pressure of 10 kgf / cm 2, and a press time of 5 minutes.

Comparative Example 3

Solid content was made into 20 g / m <2>, and other conditions were made the same as Example 5.

Comparative Example 4

Solid content was set to 650 g / m <2>, and other conditions were made the same as Example 5.

Example 6

Plywood (1) Plywood with a thickness of 12 mm

Cosmetic material (3) ... 0.3mm-thick veneer

Glass nonwoven fabric ..... Glass nonwoven fabric consisting of a mixed fiber of short fibers and long fibers with a fiber diameter of 10 µm and impregnated with a phenolic resin of 58% of solid content of 58 g of solid content is obtained by impregnating a phenolic resin with a solid content of 200 g / m 2. After impregnation, drying was performed at 105 ° C. for 10 minutes to obtain a semi-cured sheet (2).

The sheet 2 was superimposed on the base plate 1, and the cosmetic material 3 was superimposed on the sheet 2 to prepare a wood finishing material at a press temperature of 150 ° C., a pressure of 10 kgf / cm 2, and a press time of 5 minutes.

Example 7

Using the same base plate 1 and the cosmetic material 3 as in Example 6, the same glass nonwoven fabric as in Example 5 was impregnated with a 58% solid content of methol-based phenolic resin to obtain a solid having a solid content of 300 g / m 2. It dried in the same conditions as and set it as the semi-hardened state. Press conditions at the time of adhesion were made into 10 minutes of press time, and other conditions were made the same as Example 5.

Comparative Example 5

DAP resin was used instead of the phenol resin used in Example 6, and other conditions were the same as in Example 6.

The steel ball drop test was carried out in accordance with JIS A-1408 for Examples 5 to 7 and Comparative Examples 3 to 5 described above. This test measures the depth of dent of the sample when the No. 2 steel ball (540 g) was dropped on the sample. The sample is left fully supported on the sand. The results were as shown in Table 5 below.

Depth of cut (mm) Example 5 0.14 Example 6 0.15 Example 7 0.14 Comparative Example 3 0.28 Comparative Example 4 Inability to measure Comparative Example 5 0.29

Example 8

Plywood (1) Plywood with a thickness of 12 mm

Cosmetic material (3) ... 0.3mm-thick veneer

Glass nonwoven fabric ..... The glass nonwoven fabric of the basis weight 100g / ㎡ which consists of a mixed fiber of short fibers and long fibers, impregnated with a 40% solid dispersion of water-based phenolic resin to obtain a solid content of 200g / ㎡ After impregnation, it dried at 105 degreeC for 10 minutes, and obtained the sheet | seat 2 in semi-hardened state. The moisture content of this sheet 2 was 8 weight%.

The sheet 2 in the prepreg sheet state is superimposed on the base plate 1, and the cosmetic material 3 is superimposed on the sheet 2, and wood is pressed at a press temperature of 150 ° C., a pressure of 10 kgf / cm 2, and a press time of 5 minutes. Finishes were manufactured.

Example 9

In Example 1, the solid content of the water-dispersive phenol resin was 300 g / m 2, the drying conditions were 8 minutes at 105 ° C., and the water content was 10% by weight in the semi-cured sheet 2.

Comparative Example 6

In Example 8, the drying conditions were 20 minutes at 105 degreeC, and the moisture content was 2 weight% in the semi-cured sheet 2.

Comparative Example 7

In Example 8, drying conditions were 3 minutes at 105 degreeC, and the water content was 20 weight%.

Example 10

Plywood (1) Plywood with a thickness of 12 mm

Cosmetic material (3) ... 0.3mm-thick veneer

Glass nonwoven fabric ···· A glass nonwoven fabric composed of a mixed fiber of short fibers and long fibers with a fiber diameter of 10 μm was impregnated with a 58% solid methanol content of phenolic resin with a solid content of 200 g / m 2. After impregnation, drying was performed at 105 ° C. for 10 minutes to obtain a semi-cured sheet (2).

The sheet 2 was superimposed on the base plate 1, and the cosmetic material 3 was superimposed on the sheet 2 to prepare a wood finishing material at a press temperature of 150 ° C., a pressure of 10 kgf / cm 2, and a press time of 5 minutes.

Example 11

Using the same base plate 1 and the cosmetic material 3 as Example 10, the same glass nonwoven fabric as Example 10 was impregnated with 58% of solid content of methol-soluble phenol resin to obtain a solid having a solid content of 300 g / m 2, and Example 10 It dried in the same conditions as and set it as the semi-hardened state. Press conditions at the time of adhesion made the press time 10 minutes, and other conditions were made the same as Example 10.

The steel-dropping test was done about Example 8-11 mentioned above and Comparative Examples 6 and 7 based on JISA-1408. This test measures the depth of dent of the sample when the No. 2 steel ball (540 g) was dropped on the sample. The sample is left fully supported on the sand. The results are shown in Table 6 below.

Depth of cut (mm) Example 8 0.14 Example 9 0.15 Example 10 0.15 Example 11 0.14 Comparative Example 6 Inadequate adhesion due to insufficient adhesion Comparative Example 7 0.28

Example 12

Plywood (1) Plywood with a thickness of 12 mm

Cosmetic material (3) ... 0.3mm-thick veneer

Glass nonwoven fabric ..... The glass nonwoven fabric of the basis weight 100g / ㎡ which consists of a mixed fiber of short fibers and long fibers, impregnated with a 40% solid dispersion of water-based phenolic resin to obtain a solid content of 200g / ㎡ After impregnation, it dried at 105 degreeC for 10 minutes, and obtained the semi-cured sheet (2).

The sheet 2 was superimposed on the base plate 1, and the cosmetic material 3 was superimposed on the sheet 2 to prepare a wood finishing material at a press temperature of 150 ° C., a pressure of 10 kgf / cm 2, and a press time of 5 minutes.

Example 13

The press temperature was 150 deg. C, the pressure was 7.5 kgf / cm &lt; 2 &gt;, and the press time was 7 minutes. Other conditions were prepared under the same conditions as in Example 12.

Example 14

A glass nonwoven fabric having a basis weight of 100 g / m 2 composed of a mixed fiber of short fibers and long fibers was impregnated with a 58% solid content of methol-soluble phenolic resin, and a solid content of 200 g / m 2 was obtained. The other conditions were made the same conditions as Example 12 using the dried semi-cured sheet 2.

Example 15

The same glass nonwoven fabric as in Example 14 was impregnated with a 58% solid content of methol-based phenolic resin to obtain a solid having a solid content of 300 g / m 2, and dried under the same conditions as in Example 14 to give a semi-cured sheet 2. It manufactured by the same conditions as Example 12.

Comparative Example 8

The press temperature was 125 degreeC, the pressure of 0.8 kgf / cm <2>, press time 2 minutes, and the other conditions were the same as that of Example 12.

Comparative Example 9

The press temperature was 185 degreeC, the pressure of 25 kgf / cm <2>, press time 25 minutes, and the other conditions were the same as that of Example 12.

The steel ball drop test was performed in accordance with JIS A-1408 for Examples 12 to 15 and Comparative Examples 8 and 9 described above. This test measures the depth of dent of the sample when the No. 2 steel ball (540 g) was dropped on the sample. The sample is left fully supported on the sand. The results are shown in Table 7 below.

Depth of cut (mm) Example 12 0.15 Example 13 0.16 Example 14 0.15 Example 15 0.14 Comparative Example 8 0.30 Comparative Example 9 0.27

Example 16

Plywood (1) Plywood with a thickness of 12 mm

Cosmetic material (3) ... 0.3mm-thick veneer

Glass non-woven fabrics, with a fiber diameter of 10 µm, glass fibers alone having a basis weight of 100 g / m2, consisting of mixed fibers of short and long fibers

Thermosetting resin ..... Water-based phenolic resin with 40% solids.

Solid content during resin impregnation ... 200g / ㎡

The sheet | seat 2 was obtained by making the glass nonwoven fabric impregnated with phenol resin (solid content 200g / m <2>) for 10 minutes at 105 degreeC, and making it semi-hardened. The sheet 2 is superimposed on the base plate 1, and the cosmetic material 3 is superimposed on the sheet 2, and the wood finishing material is applied at a press temperature of 150 ° C., a pressure of 10 kgf / cm 2, and a press time of 5 minutes. Prepared.

Example 17

The water-disperse phenolic resin of 40% of solid content was impregnated into the glass nonwoven fabric so that solid content of water-disperse phenolic resin might be 300g / m <2>, and it was then dried and obtained sheet (2). Other conditions produced the wood finishing material on the same conditions as Example (16).

Example 18

Plywood (1) Plywood with a thickness of 12 mm

Cosmetic material (3) ... 0.3mm-thick veneer

Glass nonwoven fabric ···· A glass nonwoven fabric composed of a mixed fiber of short fibers and long fibers with a fiber diameter of 10 μm was impregnated with a 58% solid methanol content of phenolic resin with a solid content of 200 g / m 2. After impregnation, drying was performed at 105 ° C. for 10 minutes to obtain a semi-cured sheet (2).

The sheet 2 was superimposed on the base plate 1, and the cosmetic material 3 was superimposed on the sheet 2 to prepare a wood finishing material at a press temperature of 150 ° C., a pressure of 10 kgf / cm 2, and a press time of 5 minutes.

Example 19

Using the same base plate 1 and the cosmetic material 3 as in Example 18, the same glass nonwoven fabric as in Example 18 was impregnated with a methol-soluble phenol resin having a solid content of 58% to obtain a solid having a solid content of 300 g / m 2. It was made to dry on the same conditions as the semi-hardened state. Press conditions at the time of adhesion were made into 10 minutes of press time, and other conditions were made the same as Example 18. FIG.

Comparative Example 10

Sheet (2) was obtained by impregnating kraft paper with the same phenolic resin as in Example 16. Other conditions produced the wood finishing material on the same conditions as Example 16.

The steel ball dropping test was done about these Examples 16-19 and the comparative example 10 based on JISA-1408. This test measures the depth of dent of a sample when steel ball No. 2 falls on the sample. The results are shown in Table 8.

Depth of cut (mm) Example 16 0.15 Example 17 0.14 Example 18 0.15 Example 19 0.14 Comparative Example 10 0.28

Example 20

Plywood (1) Plywood with a thickness of 12 mm

Cosmetic material (3) ... 0.3mm-thick veneer

Glass nonwoven fabric ..... The glass nonwoven fabric of the basis weight 100g / ㎡ which consists of a mixed fiber of short fibers and long fibers, impregnated with a 40% solid dispersion of water-based phenolic resin to obtain a solid content of 200g / ㎡ After impregnation, it dried at 105 degreeC for 10 minutes, and obtained the semi-cured sheet (2).

The sheet 2 was superimposed on the base plate 1, and the cosmetic material 3 was superimposed on the sheet 2 to prepare a wood finishing material at a press temperature of 150 ° C., a pressure of 10 kgf / cm 2, and a press time of 5 minutes.

Example 21

Using the same base plate 1 and the cosmetic material 3 as in Example 20, impregnating the same glass nonwoven fabric as in Example 20 with an aqueous dispersion-based phenol resin having a solid content of 40% to obtain a solid having a solid content of 300 g / m 2, and was the same as in Example 20. It dried under conditions and set it as the semi-hardened state. Press conditions at the time of adhesion were made into 10 minutes of press time, and other conditions were made the same as Example 20.

Example 22

Using the same base plate 1 and the cosmetic material 3 as in Example 20, the same glass nonwoven fabric as in Example 20 was impregnated with a water-soluble phenolic resin having a solid content of 54% to obtain a solid having a solid content of 200 g / m 2, and Example 20 It dried in the same conditions as and set it as the semi-hardened state. Press conditions at the time of adhesion were made into the same conditions as in Example 20.

Example 23

The used base plate (1), the cosmetic material (3) and the glass nonwoven fabric were the same as in Example 20, and the glass nonwoven fabric was impregnated with a water-soluble phenolic resin having a solid content of 54% to obtain a solid having a solid content of 300 g / m 2, and the same conditions as in Example 20 It dried at and made into the semi-hardened state. Press conditions at the time of adhesion were made into the same conditions as in Example 21.

The difference of the phenol resin impregnated into the sheet base material of Examples 20-23 is shown in following Table 9.

Example 20 Example 21 Example 22 Example 23 Disperse / Dissolve Dispersion Dispersion Dissolution Dissolution Solid content (%) 40 40 54 54 Sheet solids during impregnation (g / ㎡) 200 300 200 300

Comparative Example 11

DAP resin was used instead of the phenol resin used in Example 20, and other conditions were the same as in Example 20.

The steel ball drop test was performed in accordance with JIS A-1408 for Examples 20 to 23 and Comparative Example 11 described above. This test measures the depth of dent of the sample when the No. 2 steel ball (540 g) was dropped on the sample. The sample is left fully supported on the sand. The results are shown in Table 10 below.

Depth of cut (mm) Example 20 0.15 Example 21 0.14 Example 22 0.16 Example 23 0.15 Comparative Example 11 0.29

As described above, according to the present invention, a sheet of a prepreg state containing a thermosetting resin is superimposed on a substrate on which a resin can be impregnated, and a resin material impregnable with a resin is superimposed on the sheet to be thermally pressed and bonded to each other. As a wood finishing material, a phenol resin having a flow rate of 3 to 30% in a prepreg state is used as the thermosetting resin, and the thermosetting resin of the sheet is impregnated with the cosmetic material, thereby improving the scratch resistance of the cosmetic material. In addition, no adhesive is required for adhering the cosmetic material on the substrate, and since the sheet and the cosmetic material can be reliably attached to the substrate simply by heat pressing, manufacturing is also easy. In addition, the temperature is excellent in dimensional stability due to the presence of the sheet even with a change in humidity, and also improves in strength. In addition, the use of a phenol resin dissolved or dispersed in water or an organic solvent is inexpensive, easy to manufacture, and improves the scratch resistance.

Claims (17)

Thermosetting resin is impregnated into the base material of the sheet 2 capable of impregnation of resin, and the resin is impregnated on the base plate 1, and the resin impregnable cosmetic material is laminated on the sheet 2 and heat-pressed to adhere to each other. As a wood finish, A wood finish material comprising a phenol resin having a flow rate of 2 to 50% in a prepreg state as a thermosetting resin. The method of claim 1, The phenolic resin has a viscosity of 0.1 to 50 poise at a temperature of 25 ℃ wood finish material. The method according to claim 1 or 2, The phenol resin is a wood finishing material, characterized in that dissolved or dispersed in water or an organic solvent. The method of claim 3, A wood finishing material, wherein said phenolic resin is dissolved or dispersed in water so as to have a solid content of 20 to 80% by weight. The method of claim 3, A wood finish material, characterized in that the phenol resin is dissolved or dispersed in an organic solvent so as to have a solid content of 20 to 80% by weight. The method of claim 3, The wood finishing material, characterized in that the content of the water or organic solvent in the sheet of the prepreg state 3 to 15% by weight. The method according to claim 5 or 6, A wood finishing material characterized by mixing one or two or more selected from ketones such as lower alcohols such as methanol and ethanol, acetone, and methyl ethyl ketone, toluene and xylene as the organic solvent. A thermosetting resin is impregnated on the base sheet 2 capable of impregnating resin and laminated on the base plate 1, and the sheet 2 is laminated with a cosmetic material 3 capable of impregnating resin. As a wood finishing material bonded to each other by The sheet (2) is a wood finishing material, characterized in that the thermosetting resin was impregnated to a solid content of 50 to 500g / ㎡ to the sheet base material and then semi-cured state. The method of claim 8, Wood finishing material, characterized in that the solid content is 150 ~ 350g / ㎡. The method according to claim 8 or 9, Examples of the thermosetting resin include an phenol resin, an epoxy resin obtained by adding a curing agent to a polygoma having a reactive epoxy group at its terminal, a thermosetting ethylene vinyl acetate copolymer, an unsaturated polyester resin, a free fish resin, a melanin resin, a urethane resin, and a urea ( Iii) Wood finishing materials, characterized in that one or two or more selected from resins, DAP resins and unsaturated polyester resins are used. The method according to any one of claims 8 to 10, A wood finishing material comprising a hot press temperature of 130 to 180 ° C., a press pressure of 1 to 20 kgf / cm 2, and a press time of 2.5 to 20 minutes. Thermosetting resin is impregnated onto the base plate 1 by impregnating the base material 2 capable of impregnating the resin, and the resin material impregnated with the impregnable cosmetic material 3 is laminated on the sheet 2 and heat-pressed to adhere to each other. As wood finishing material, A wood finishing material, characterized in that the sheet (2) is impregnated with a thermosetting resin in a glass nonwoven fabric composed of glass fibers alone or fibers mixed with other fibers. The method of claim 12, Wood finishing material characterized in that the paper is attached to the glass non-woven fabric. The method according to claim 12 or 13, The glass nonwoven fabric is a wood finishing material, characterized in that the basis weight is 10 ~ 1000g / ㎡. The method according to any one of claims 12 to 14, The glass nonwoven fabric is a wood finishing material, characterized in that the fiber length is composed of a mixed fiber of short fibers of 3 to 15 mm and long fibers of 10 to 50 mm. The method of claim 15, The glass nonwoven fabric is a wood finishing material, characterized in that the ratio of short fibers 20 to 100%. Thermosetting resin is impregnated onto the base plate 1 by impregnating the base material 2 capable of impregnating the resin, and the resin material impregnated with the impregnable cosmetic material 3 is laminated on the sheet 2 and heat-pressed to adhere to each other. As wood finishing material, The tensile finish strength of the sheet 2 is 10 kgf / cm 2 or more after hot pressing for 5 minutes at a press temperature of 150 ° C. and a press pressure of 10 kgf / cm 2.