JP2006321095A - Method for producing surface decoration material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing a surface decoration material which can curtail a process and can stably produce the material in high productivity throughout the year. <P>SOLUTION: The method for producing the surface decoration material includes a process for forming one or more grooves 4-7 having a V-shaped cross sections in the back of a surface material 1, a process for applying an adhesive 8 on the back of the surface material, a process in which the adhesive 8 is heated, and the surface material 1 is contacted with the outer surface of a core material 9 from the back side, a process in which on the outside of the corner part of the core material 9, the surface material is bent so that the inside surfaces facing each other of the V-shaped groove of the surface material are contacted with each other to eliminate the V-shaped groove to be arranged along the outer surface of the core material, and a process for pressing by a roll press from the outer surface of the surface material arranged along the outer surface of the core material. The adhesive is a moisture curing type hot melt adhesive, and the heating temperature of the adhesive is 80-180°C. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a surface decorative material having a structure in which a surface material for enhancing design properties or enhancing workability such as painting is bonded to an outer surface of a core material in, for example, a building or furniture. More particularly, the present invention relates to a method for manufacturing a surface decorative material capable of stably bonding a surface material to an outer surface of a core material with high productivity using a hot melt adhesive.

  Conventionally, in a furniture or a building, a surface decorative material in which a surface material for improving design properties or workability such as painting is bonded to the outer surface of a core material has been widely used. For example, when manufacturing surface decorative materials used at entrances, etc., a surface material with a resin sheet printed with grain or the like on the surface of MDF or plywood, or a surface material coated with MDF or plywood surface is used. Prepare first. Then, a groove having a V-shaped cross section is formed on the back surface of the surface material, and then an aqueous emulsion adhesive is applied and heated. Next, a core material is disposed on the adhesive layer, the surface material is bent so as to surround the periphery of the core material, and then the surface material is fixed to the core material by hitting a tucker. Then, press curing was performed at room temperature to obtain a surface decorative material made up with a surface material.

  In the manufacturing method described above, in order to increase productivity, curing is performed by stacking a plurality of surface decorative materials during press curing. Therefore, since the surface decorative material with the tacker being struck is stacked, the surface of the surface material of the other surface decorative material is damaged by the tucker, and the designability may be impaired. Moreover, since press curing time is long, it was difficult to improve productivity.

On the other hand, the following Patent Document 1 discloses a method for producing a surface material using a moisture-curing hot melt adhesive. Here, after forming a V-shaped groove on the back surface of the surface material, A moisture curable hot melt adhesive is applied to the back surface of the surface material. Next, the hot melt adhesive is melted again by using a heating means such as far infrared rays, near infrared rays, or hot air, the surface material is bent by a V-shaped groove, and the core material is pressed and contacted with a flat press or a roll press. . In this case, the heating temperature by the heating means is a surface temperature of 50 to 70 ° C. In addition, when pressing with a flat press, it is necessary to press for about 1 to 2 minutes at a pressure of 1 to 5 kgf / m ² , and in the case of a roll press, it is necessary to press for 2 minutes or more. Is described.
JP 9-41648 A

  As described above, the manufacturing method described in Patent Document 1 does not perform room temperature press curing as compared with the conventional manufacturing method using an aqueous emulsion adhesive, and also uses a moisture-curable hot melt adhesive. Therefore, it is possible to shorten the manufacturing process. However, even in the manufacturing method described in Patent Document 1, when a roll press is used, a pressing time of 2 minutes or more is required, and further reduction of the production process is required.

  On the other hand, moisture-curing hot melt adhesives having an isocyanate group in the molecule have been used in various fields. In this type of moisture curable hot melt adhesive, isocyanate groups react with moisture in the air or adherend, and this moisture curing reaction finally forms a highly elastic and high strength cured product having a crosslinked structure. Is done. Such a moisture curable hot melt adhesive has been variously improved and contains a urethane prepolymer obtained by reacting a polyol component having a hydroxyl group with a polyisocyanate component having an isocyanate group. In recent years, a type of moisture curable hot melt adhesive has been widely used.

  However, in the case of producing a surface decorative material using this conventional moisture-curable hot melt adhesive, as described in Patent Document 1, a press time of several minutes is still required, and the production process is It has been difficult to further shorten. In particular, in the summer when the ambient temperature is high, while the solidification reaction immediately after bonding does not proceed sufficiently, it may not be able to withstand the repulsive force of the surface material that is pressure-bonded to the surface of the core material, resulting in defective products. there were.

  The object of the present invention is to produce a surface decorative material with higher productivity using a moisture-curable hot melt adhesive in view of the above-described state of the art, and regardless of the ambient temperature, An object of the present invention is to provide a production method that makes it possible to produce a surface cosmetic material stably throughout the year.

  The method for producing a surface decorative material according to the present invention includes a step of forming at least one groove having a V-shaped cross section on the back surface of the surface material, a step of applying an adhesive to the back surface of the surface material, Heating the adhesive to bring the surface material into contact with the outer surface of the core material from the back surface side, and the inner side surfaces of the V-shaped grooves of the surface material facing each other outside the corner portion of the core material A step of bending the surface material so that the V-shaped groove disappears and along the outer surface of the core material, and a roll press from the outer surface of the surface material along the outer surface of the core material The adhesive is a moisture-curable hot melt adhesive, and the heating temperature of the adhesive is in the range of 80 to 180 ° C.

On the specific situation with the manufacturing method of the surface cosmetics which concern on this invention, the application quantity of the said moisture hardening type hot-melt-adhesive is in the range of 10-100 g / m < ² >, and roll press time is 0.1-60. It is within the range of seconds.

  In another specific aspect of the method for producing a surface cosmetic material according to the present invention, the moisture-curable hot melt adhesive has a softening point in the range of 30 to 80 ° C. and a creep deviation width of 0.5 to 100 mm. Moisture curable hot melt adhesives in the range are used.

  In still another specific aspect of the surface decorative material according to the present invention, the core material has a plurality of corner portions, and a plurality of grooves are formed on the inner surface of the surface material corresponding to each of the plurality of corner portions. It is formed.

  In still another specific aspect of the method for producing a surface cosmetic material according to the present invention, the surface material is bonded to the core material so as to wrap around the outer periphery of the core material. An outer peripheral surface is covered with the surface material.

  In still another specific aspect of the method for manufacturing a surface decorative material according to the present invention, a plurality of grooves are arranged on the back surface of the surface material with respect to one corner of the core material.

  In the method for producing a surface cosmetic material according to the present invention, an adhesive is applied to the back surface of the surface material, heated, the surface material is brought into contact with the outer surface of the core material from the back surface side, and a V-shaped groove on the surface material is obtained. By bending the surface material so that the inner surfaces facing each other come into contact with each other and the V-shaped groove disappears, the surface material is placed on the outer surface of the core material, and in that state, the surface material is pressed by a roll press. The material is bonded to the core material. In the present invention, a moisture-curing hot melt adhesive is used as the adhesive, and the heating temperature of the adhesive during the bonding is in the temperature range of 80 to 180 ° C. When the heating temperature is lower than 80 ° C., the wettability of the adhesive to the core material is not sufficient, and sufficient adhesive force between the surface material and the core material cannot be ensured. Since the moisture-curable hot-melt adhesive is difficult to cool, after the surface material is joined to the core material, peeling or the like occurs due to the repulsive force of the surface material, and a defective product is likely to occur.

  On the other hand, in the present invention, the moisture-curing hot melt adhesive is heated to a temperature range of 80 to 180 ° C. to perform adhesion, so that the wettability of the adhesive to the core material is sufficient, and the core material Can be reliably bonded to the surface material, and the heating temperature is not so high, so that the surrounding material is quickly cooled throughout the year, so that the surface material is difficult to peel off from the core material, and defective products are unlikely to occur.

  Therefore, according to the present invention, it is possible not only to shorten the production process but also to provide a manufacturing method capable of easily joining the surface material to the core material reliably throughout the year.

  Therefore, by using the method for manufacturing a surface decorative material according to the present invention, it is possible to stably manufacture surface decorative materials such as buildings and furniture with high productivity.

When the coating amount of the moisture curable hot melt adhesive is in the range of 10 to 100 g / m ² and the roll press time is in the range of 0.1 to 60 seconds, the core material and the surface without increasing the manufacturing cost The material can be securely bonded, and the manufacturing process can be further shortened.

  When a moisture curable hot melt adhesive having a softening point in the range of 30 to 80 ° C. and a creep deviation width in the range of 0.5 to 100 mm is used as the moisture curable hot melt adhesive In the process of heating the adhesive, the adhesive can be sufficiently melted, and the moisture-curable hot-melt adhesive can be quickly and reliably solidified after the core material and the surface material are bonded together. Later, it is difficult for the surface material to peel off from the core material, and it is difficult for displacement to occur. Therefore, the surface material can be bonded to the core material with high productivity, and the generation rate of defective products can be further reduced.

  Hereinafter, the present invention will be clarified by describing specific embodiments of the method for producing a surface decorative material of the present invention with reference to the drawings.

  First, as shown in FIG. 2, a plate-like or sheet-like surface material 1 is prepared.

  In the present embodiment, the surface material 1 has a base material layer 2 and a decorative layer 3 laminated on one surface of the base material layer 2. The surface material 1 is illustrated in FIG. 2 such that the upper surface is the back surface side. That is, the decorative layer 3 is disposed on the surface side of the surface material 1.

  In the present embodiment, the base material layer 2 is not particularly limited, but vinyl chloride resin, vinylidene chloride resin, polyethylene, polypropylene, polystyrene, ABS resin, polyamide, polyester, polyurethane, polyvinyl alcohol, ethylene-acetic acid. Synthetic resins such as vinyl copolymer resin, chlorinated polypropylene, melamine resin; natural wood, plywood, particle board, rigid fiber board, semi-rigid fiber board or laminated material such as laminated material. In addition, the base material layer 2 itself may have a structure in which a plurality of material layers are stacked.

  On the other hand, the decorative layer 3 is formed of a synthetic resin sheet or a coating film. The synthetic resin sheet constituting the decorative layer 3 is not particularly limited, but includes vinyl chloride resin, vinylidene chloride resin, polyethylene, polypropylene, polystyrene, ABS resin, polyamide, polyester, polyurethane, polyvinyl alcohol, and ethylene-vinyl acetate copolymer. Resins, chlorinated polypropylene, and the like can be used, and plain sheets made of these synthetic resins or sheets on which letters and patterns are printed on the surface of these synthetic resin sheets can be used. Alternatively, the decorative layer 2 can be made of various materials such as a wood-made board sheet, a synthetic board-impregnated board sheet, a metal foil such as aluminum foil, paper or cloth. Furthermore, the decorative layer 3 may be formed of a coating film. The decorative layer 3 may also have a structure in which a plurality of materials are stacked.

  The decorative layer 3 is disposed on the surface side of the surface material 1 and is provided to enhance the design of the surface of the surface decorative material finally obtained. But when the design property is not so required, the decorative layer 3 may not be provided, and the surface material may be formed only by the base material layer 2.

  In addition, since the said surface material 1 is bend | folded so that it may follow along the circumference | surroundings of a core material so that it may mention later, it is desirable to have thickness suitable for such a process. Therefore, in general, the thickness of the surface material 1 is preferably about 3 to 15 mm. However, this thickness can be appropriately changed according to the material of the surface material 1 to be used.

  Next, as shown in FIG. 3, a plurality of grooves 4 to 7 having a V-shaped cross section are formed from the back surface side of the surface material 1. Note that only one groove having a V-shaped cross section may be formed.

  In the present embodiment, each of the grooves 4 to 7 has a V-shaped cross section having a pair of inner surfaces facing each other. In particular, in the present embodiment, the angle formed by the pair of inner surfaces is 90. It is considered a degree. However, as described later, the angle formed by the pair of inner side surfaces, that is, the opening angle of the V-shaped groove is not limited to 90 degrees.

  Further, in the present embodiment, the grooves 4 to 7 are formed so as to reach the back surface side of the base material layer 2, but the depth of the grooves 4 to 7 is particularly a depth that reaches the back surface side of the base material layer 2. It is not limited to this. That is, the grooves 4 to 7 may be provided up to an intermediate depth position of the base material layer 2 or may be provided up to an intermediate depth position of the decorative layer 3. Unless the effect which improves the design property by the surface side of the decorative layer 3 is not impaired, the depth position of the grooves 4-7 is not specifically limited.

  Further, the depths of the grooves 4 to 7 and the angle formed between the pair of inner side surfaces can be appropriately adjusted according to the outer shape of the core material, as will be described later. The V-shaped grooves 4 to 7 can be formed using an appropriate tool such as a cutting tool.

  Next, as shown in FIG. 4, a moisture curable hot melt adhesive 8 is applied to the back surface side of the surface material 1. The moisture curable hot melt adhesive 8 is applied on the back surface of the surface material 1 so as to reach the inner surfaces of the grooves 4 to 7.

  The coating method is not particularly limited, and can be performed using an appropriate coating apparatus such as a roll coater, a knife coater, or a spray gun. When a roll coater is used, it can be easily applied to surfaces other than the V-shaped groove, and when a knife coater or spray gun is used, the adhesive is also applied to the inside of the V-shaped groove at the same time. Can do.

  In the present embodiment, the moisture curable hot melt adhesive is applied to the surface portion of the base material layer 2 and the inner surfaces of the grooves 4 to 7 on the back surface of the surface material 1. However, in the present invention, the moisture-curing hot melt adhesive is used only on the surface portion of the interior material 2, that is, on the portion other than the inner side surfaces of the grooves 4 to 7, and another adhesive is applied in the groove. May be. Examples of such other adhesives include water-based emulsion adhesives, modified silicone adhesives, liquid urethane adhesives, and thermoplastic hot melt adhesives. That is, various other adhesives may be used in the groove depending on the performance required for the finally obtained surface decorative material.

  But a production process can be simplified by apply | coating the moisture hardening type hot-melt-adhesive 8 in both surface parts other than the said grooves 4-7 and the said grooves 4-7. Further, if not necessary, the adhesive may not be applied in the grooves 4 to 7.

The application amount of the moisture curable hot melt adhesive 8 is desirably in the range of 10 to 100 g / m ² in the surface portion of the back surface of the surface material 1, that is, in the portion other than the grooves 4 to 7. . More preferably, it is the range of 20-80 g / m < ² >. If the amount of the adhesive applied is too large, the production cost increases, which is not preferable. Moreover, when there is too little application amount of an adhesive agent, it may become difficult to fully improve the adhesiveness of the surface material 1 with respect to the core material mentioned later, and is unpreferable.

  The moisture curable hot melt adhesive 8 is not particularly limited, but preferably has a softening point of 30 to 80 ° C. and a creep deviation width of 0.1 to 100 mm measured by a method described later. Some are used.

  When the softening point exceeds 80 ° C., it may be difficult to sufficiently remelt the adhesive in the subsequent bonding heating step. When the softening point is lower than 30 ° C., the moisture is later bonded to the core material. It may be difficult to solidify the curable hot melt adhesive quickly and sufficiently. More preferably, the softening point is in the range of 40-75 ° C.

  The creep deviation width is a value measured according to the following method.

  Measurement of creep deviation width: A moisture-curing hot melt adhesive was applied to a 100 μm thick PET sheet by heating and melting to a thickness of 40 μm, and 3 minutes after application, the PET sheet was placed on a 85 ° C. hot plate from the PET sheet side. The MDF having a surface temperature of 20 ° C. is superposed, and surface pressing is performed at a pressure of 245 Pa for 3 seconds to obtain an adhesion test piece. About the adhesion test piece immediately after pressing, the measurement atmospheric temperature is set to 20 ° C., a load of 150 g / inch is applied, and the deviation in the 90 ° peeling direction is observed, and when the deviation speed becomes 1 mm / 3 seconds or less, the process is finished. The deviation width at that time is obtained and set as the creep deviation width.

  If the creep deviation width exceeds 100 mm, the cohesive force of the moisture-curing hot melt adhesive is not sufficient, and adhesion failure tends to occur after the subsequent bonding with the core material, which is not preferable. If the creep deviation width is smaller than 0.1 mm, the wettability of the adhesive to the core material becomes insufficient in the subsequent bonding process with the core material, and the surface material and the core material can be sufficiently bonded. There is a risk that a defective product may be produced in which the surface material is partially or entirely peeled from the core material.

  The moisture curable hot melt adhesive used in the present invention is not particularly limited. For example, a urethane prepolymer-containing moisture curable hot melt adhesive such as Sdyne 9641 manufactured by Sekisui Chemical Co., Ltd. is used. It is done.

  Next, the applied moisture curable hot melt adhesive 8 is heated and remelted using a heating device. There is no particular limitation on the heating device, and any suitable heating device that can irradiate or blow far infrared rays, near infrared rays, hot air from a Leister, or the like can be used. In the present embodiment, the moisture curable hot melt adhesive 8 is heated in the range of 80 to 180 ° C. and remelted. If the heating temperature is lower than 80 ° C., a core material to be performed later is placed on the moisture-curing hot melt adhesive 8 and the time to the bonding process is not shortened extremely, so that the process can be shortened. It becomes difficult and the wettability of the adhesive to the core material cannot be ensured, the adhesive force between the surface material 1 and the core material cannot be secured, the physical properties of the final product are lowered, and the defective product occurrence rate is increased. . In addition, when the heating temperature is higher than 180 ° C., the moisture curable hot melt adhesive 8 is difficult to be cooled, and the surface material is partially or entirely removed from the core material in the subsequent bonding process with the core material. Peeling off, resulting in a higher incidence of defective products.

  Next, as shown in FIG. 5, the core material 9 is placed on the back surface side of the surface material 1 after heating. The core material 9 is not particularly limited, but vinyl chloride resin, vinylidene chloride resin, polyethylene, polypropylene, polystyrene, ABS resin, polyamide, polyester, polyurethane, polyvinyl alcohol, ethylene-vinyl acetate copolymer resin, chlorinated polypropylene, Various synthetic resins such as melamine resin; or wood materials such as natural wood, plywood, particle board, hard fiber board, semi-hard fiber board or laminated material can be used as appropriate. Further, the core material 9 is shown as a single member in FIG. 5, but may have a structure in which a plurality of materials are laminated.

  In the present embodiment, a rectangular parallelepiped core 9 is disposed on a moisture-curing hot melt adhesive 8 that is heated and melted. And the width direction dimension W of the core material 9 is made equal to the dimension along the width direction dimension of the surface portion between the grooves 5 and 6. On the other hand, the dimension along the width direction dimension in FIG. 5 of the surface portion between the grooves 4 and 5 is equal to the height direction dimension of the core member 9. Similarly, the dimension along the width direction dimension of the upper surface portion between the grooves 6 and 7 is also made equal to the height direction dimension of the core member 9.

  And the sum total of the dimension along the said width direction dimension of the outer part of the groove | channels 4 and 7 is made narrower than the width direction dimension W of the core material 9. FIG.

  In addition, the dimension of the direction orthogonal to the said width direction is not specifically limited. In addition, the length in the length direction of the core material 9 and the size of the surface material 1 along the length direction dimension are not necessarily equal, but the same length is desirable in order to increase the product acquisition rate.

  Next, from the state shown in FIG. 5, the surface material 1 is bent so that the grooves 4 to 7 are in contact with the inner side surfaces of the groove at the portion corresponding to the corner portion of the core material 9 and the V-shaped groove is eliminated. The surface material 1 is made to follow the outer surface of the core material 9. In addition, the shorter the time from heating the moisture-curable hot melt adhesive 8 to being reflected in the bonding step is preferable. When this time is too long, the wettability of the moisture curable hot melt adhesive 8 to the core material 9 becomes insufficient, resulting in poor adhesion. Specifically, this time is desirably 5 minutes or less, more preferably 30 seconds or less.

  Next, after the surface material 1 is bent as described above, a roll press is performed as shown in FIG. At the time of roll pressing, a plurality of rolls 10 are arranged outside the surface material 1 and roll pressing is performed for 0.1 to 60 seconds. When the roll press time is longer than 60 seconds, productivity is lowered or a very large equipment area is required, which is not preferable. Therefore, it is preferably 60 seconds or shorter, more preferably 50 seconds or shorter. Moreover, when the roll press time is shorter than 0.1 seconds, the moisture-curing hot melt adhesive 8 is not sufficiently cooled, and sufficient bonding strength cannot be exhibited, which is not preferable. The roll press time is more preferably 0.5 seconds or longer.

  In addition, the pressure at which the roll pressing is performed is preferably as high as possible, but specifically, it is preferably 49 Pa or more, and more preferably 147 Pa or more.

  The material of the roll 10 is not particularly limited, but a roll made of an elastic material such as a silicone resin, a roll made of a synthetic resin such as nylon, or a roll made of a metal such as iron, aluminum, or stainless steel can be used.

  In the above embodiment, the surface material 1 is bonded to the rectangular parallelepiped long core material 9, but as shown in FIGS. 7 to 10, on the outer surface of the triangular prism core material 12, The surface material 1 may be bonded to obtain the surface decorative material 13 having a substantially triangular prism shape. Here, as shown in FIG. 7, in the surface material 1, the plurality of V-shaped grooves 14 and 15 are formed so that the opening angle thereof is 120 degrees. Moreover, the cross section of the core material 12 is an equilateral triangle shape. The cross-sectional shape of the core material may be another polygon.

  Further, at the outer end in the width direction of the surface material 1, the inclination angles of the end faces 1 a and 1 b are set to the same inclination angle as that of one inner surface of the grooves 14 and 15.

  Therefore, as shown in FIG. 9, when the surface material 1 is bent along the outer peripheral surface of the core material 12 and bonded by the roll 10, a V-shaped groove is formed as in the above-described embodiment. The pair of inner side surfaces are in contact with each other, and the surface material 1 is bent and bonded so that the V-shaped groove disappears. Thus, the prismatic surface decorative material 13 shown in FIG. 10 is obtained.

  In addition, as shown in FIGS. 11-13, you may apply the surface material 1 in which the groove | channels 22 and 23 of several cross-sectional V shape were provided with respect to one corner part of the core material 21. FIG. In this case, in each of the grooves 22 and 23, the pair of inner side surfaces abut, and the surface material 24 is bent outside the one corner portion of the core material 21 so that the V-shaped groove disappears, and adhesion is performed. Is called.

  In addition, a core material may be applied to a core material so that the outer periphery of a surface material may be wound completely.

The perspective view which shows the surface decorative material obtained by the manufacturing method of the surface decorative material which concerns on one Embodiment of this invention. The perspective view which shows the surface material prepared by one Embodiment of this invention. The perspective view which shows the state which formed the several groove | channel of the cross-sectional V shape in the surface material shown in FIG. The perspective view which shows the state which apply | coated the moisture hardening type hot-melt-adhesive to the back surface of the surface material. The perspective view for demonstrating the process of arrange | positioning a core after apply | coating a moisture hardening type hot-melt-adhesive. The perspective view for demonstrating the process of bending and roll-pressing a surface material from the state shown in FIG. 5 in one Embodiment of this invention. It is a perspective view for demonstrating the modification of the manufacturing method of this invention, and is a perspective view which shows the state which apply | coated the moisture hardening type hot melt adhesive to the back surface of the surface material. The perspective view which shows the state which has arrange | positioned the core material following the process shown in FIG. The perspective view for demonstrating the process of bending and roll-pressing a surface material following the process shown in FIG. The perspective view of the surface cosmetics obtained by the modification of the manufacturing method of this invention. The partial notch front sectional drawing for demonstrating the surface material prepared by the further another modification of the manufacturing method of this invention. The partial notch front sectional drawing which shows the state which apply | coated the moisture hardening type hot-melt-adhesive to the surface material shown in FIG. The partial notch perspective view which shows the state which bonded the surface material shown in FIG. 12 around the core material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Surface material 2 ... Base material layer 3 ... Cosmetic layer 4-7 ... Groove 8 ... Moisture hardening type hot melt adhesive 9 ... Core material 10 ... Roll 11 ... Surface cosmetic material 12 ... Core material 13 ... Surface cosmetic material 14, 15 ... groove 21 ... core material 22,23 ... groove

Claims (6)

Forming at least one groove having a V-shaped cross section on the back surface of the surface material;
Applying an adhesive to the back surface of the surface material;
Heating the adhesive and bringing the surface material into contact with the outer surface of the core material from the back side;
Outside the corner portion of the core material, the outer surface of the core material is bent by bending the surface material so that the inner surfaces facing each other of the V-shaped grooves of the surface material are in contact with each other and the V-shaped grooves disappear. Along the process,
A step of pressing with a roll press from the outer surface of the surface material along the outer surface of the core material,
The method for producing a surface cosmetic material, wherein the adhesive is a moisture-curable hot melt adhesive, and the heating temperature of the adhesive is in the range of 80 to 180 ° C. The surface cosmetic material according to claim 1, wherein the application amount of the moisture curable hot melt adhesive is in the range of 10 to 100 g / m ² and the roll press time is in the range of 0.1 to 60 seconds. Method.   The moisture curable hot melt adhesive having a softening point in the range of 30 to 80 ° C and a creep deviation width in the range of 0.5 to 100 mm is used as the moisture curable hot melt adhesive. The manufacturing method of the surface cosmetics as described in any one of.   The core material has a plurality of corner portions, and a plurality of grooves are formed on the inner surface of the surface material corresponding to each of the plurality of corner portions. The manufacturing method of the surface cosmetics as described.   The said surface material is adhere | attached on the said core material so that the outer periphery of the said core material may be wound, The outer peripheral surface of the said core material is covered with the said surface material by it, The any one of Claims 1-4 A method for producing a surface cosmetic material according to claim 1. The manufacturing method of the surface decoration material of any one of Claims 1-5 by which the some groove | channel is arrange | positioned in the back surface of the said surface material with respect to one corner of the said core material.

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