JP5562985B2 - Manufacturing method of cosmetic material - Google Patents

Description

  The present invention relates to a method for producing a decorative material used for a fence, a step board, a skirting board, a door and the like in a building such as a house.

  For some time, decorative materials have been developed that are used for eaves, treads, skirting boards, doors, etc. in buildings of various forms such as houses. For example, Patent Document 1 discloses a core as shown in FIG. For the decorative material 2 to be bonded to the surface of the wooden substrate 1 as a material, grooves 4 and bent grooves 5 are formed on the bonding surface 3 of the decorative material 2 that adheres to the wooden substrate 1, and thereafter The hot melt adhesive 6 is applied to the groove 4 and the adhesive surface 3 other than the groove 4 is applied with a normal hardening type water-based woodworking adhesive 7 and is bent along the bent groove 5. A technique for bonding the material 2 to the wood substrate 1 is disclosed.

  According to this technique, the decorative material 2 is first bonded to the wooden base material 1 by the hot melt adhesive 6 applied to the groove 4, and then the decorative material 7 is used with the woodworking adhesive 7 over time. 2 can be completely adhered to the wooden substrate 1. For this reason, it is not necessary to hold down the decorative material 2 with a roller or the like until the woodworking adhesive 7 is cured, and the production speed of the decorative product can be increased.

Japanese Patent Laid-Open No. 9-272177

  However, when manufacturing a “long” decorative material, there is a problem with using a hot-melt adhesive. When manufacturing a long decorative material, for example, the position of a nozzle for supplying a hot melt adhesive is fixed, and the decorative material is fed using a feed roller, and a predetermined position such as a groove formed in the decorative material. The hot melt adhesive is applied in a straight line. At this time, since there is a limit to increasing the setting of the application speed of the hot melt adhesive, when the cosmetic material moves to the application end position of the hot melt adhesive, at the application start position and in the vicinity thereof. The hot melt adhesive is cooled and solidified, and the solidified hot melt adhesive 6 becomes a cushion as shown in FIG. And prevent close contact. For this reason, in the worst case, the decorative material 2 may be peeled off from the wooden substrate 1.

  Also, if the entire adhesive surface of the decorative material is heated using a far-infrared heater or the like, the molten state of the hot-melt adhesive can be maintained and its adhesive strength can be prevented from decreasing. Since the adhesive for woodworking, which is a water-based adhesive at the same time as the melt-based adhesive, is also heated at the same time, the water-based adhesive cannot be dried to exhibit a predetermined adhesive force. There was a possibility of peeling off from the wooden substrate.

  Such a problem has also occurred when manufacturing a long decorative material having corner portions formed by bending. In other words, even when hot-melt adhesive and water-based adhesive are applied to the back side of the decorative material, the adhesive strength of the hot-melt adhesive is undesirably lowered or the water-based adhesive cannot maintain the necessary adhesive strength. Or the like, and it may not be possible to form a decorative material having a desired shape while maintaining the folded state.

  The present invention has been developed in view of such problems of the prior art. Therefore, the main problem of the present invention is that even when producing a long decorative material, there is no risk of drying the aqueous adhesive to the extent that the necessary adhesive force cannot be maintained, and the molten state of the hot melt adhesive It is an object of the present invention to provide a method for producing a cosmetic material, which can prevent the adhesive force from undesirably decreasing while maintaining the above.

The invention described in claim 1
Folding grooves 16 and 18 are formed from the back surface X at the folding position of the long decorative material 10 to be folded,
A hot-melt adhesive 20 and a water-based adhesive 22 are linearly applied to the back surface X of the decorative material 10 including the surfaces of the grooves 16 and 18;
In the method for manufacturing a decorative material, in which the grooves 16 and 18 are closed and the decorative material 10 is bent,
At least when the decorative material 10 is bent, the hot-melt adhesive 20 is preferentially heated so that the water-based adhesive 22 maintains the necessary adhesive force, and the temperature of the hot-melt adhesive 20 is increased. It is a manufacturing method of a cosmetic material characterized by having a melting point or higher.

  According to the present invention, when the decorative material 10 is folded, the temperature of the hot melt adhesive 20 is equal to or higher than the melting point, so that the predetermined adhesive strength of the hot melt adhesive 20 can be exhibited. Moreover, since the hot-melt adhesive 20 is heated preferentially, even if the water-based adhesive 22 is heated, the adhesive force required for the water-based adhesive 22 is maintained.

  The “linear” is not limited to a continuous one with a constant width, and the width may not be constant, and may be intermittent or a waveform. This is the same throughout this specification.

The invention described in claim 2 is an improvement of the manufacturing method of claim 1,
The hot melt adhesive 20 is applied to the corner 24 of the decorative material 10 formed by the grooves 16 and 18;
The aqueous adhesive 20 is applied to the surfaces of the grooves 16 and 18.

  The hot melt adhesive 20 having a fast time to cure causes the corner 24 of the decorative material 10 to adhere first, so that an undesired misalignment occurs until the water-based adhesive 22 dries and exhibits its adhesive force. It can prevent that the shape of the folded decorative material 10 collapse | crumbles by generating.

The invention described in claim 3 is a more specific example of the manufacturing method of claim 1 or 2,
The hot melt adhesive 20 is heated by a heater 26 disposed in the vicinity of the hot melt adhesive 20.

  By heating the hot melt adhesive 20 with the heater 26 disposed in the vicinity of the hot melt adhesive 20, the hot melt adhesive 20 in the vicinity is hardly affected by the heat of the aqueous adhesive 22. Can be intensively heated.

The invention described in claim 4 is a more specific version of the manufacturing method of claim 1 or 2,
Before applying the hot melt adhesive 20, the application position 28 of the hot melt adhesive 20 in the decorative material 10 is heated.

  According to the present invention, since the application position 28 of the hot melt adhesive 20 in the decorative material 10 is preheated, the hot melt adhesive 20 applied to the position 28 is heated for a certain time after application. The heat from the applied decorative material 10 can be received, and the molten state can be maintained. On the other hand, since the water-based adhesive 22 far from the application position 28 of the hot-melt adhesive 20 is hardly affected by heat, it is possible to prevent the water-based adhesive 22 from drying undesirably.

The invention described in claim 5 is a specific example of the manufacturing method of claim 1 or 2,
Before bending the decorative material 10,
The position 32 of the decorative material 10 that contacts the hot melt adhesive 20 when the decorative material 10 is bent is heated.

  According to the present invention, the position 32 (hereinafter referred to as “contact position 32”) that comes into contact with the hot melt adhesive 20 when the decorative material 10 is folded is preheated. Even if the hot-melt adhesive 20 is cooled and solidified, the solidified hot-melt adhesive 20 comes into contact with the heated contact position 32 in the decorative material 10 when the decorative material 10 is bent. It melts by receiving heat from the position 32.

  According to the present invention, not only the adhesive strength of the hot melt adhesive is lowered but also used at the same time, even if the length of the decorative material is increased in the application length of the hot melt adhesive applied linearly. The manufacturing method of the cosmetics which can avoid the fall of the adhesive force of the water-system adhesive to perform and can form in a desired shape was able to be provided.

It is sectional drawing which shows the example of the decorative material to which this invention is applied. It is sectional drawing which shows 1st Example of the manufacturing method which concerns on this invention. It is sectional drawing which shows the other example regarding the shape of the groove | channel formed in a decorative material. It is sectional drawing which shows 2nd Example of the manufacturing method which concerns on this invention. It is sectional drawing which shows 3rd Example of the manufacturing method which concerns on this invention. It is a figure which shows a prior art. It is a figure which shows a prior art.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, an example of the decorative material 10 used in the manufacturing method according to the present invention will be described, and then a manufacturing method for bending the decorative material 10 will be described with reference to a plurality of examples.

  Further, in the description of the second and subsequent embodiments, the description of the common portions with the first embodiment will be omitted with the description of the first embodiment being used and the description will be focused on the different portions.

(First embodiment)
As shown in FIG. 1, the decorative material 10 before bending used in the present embodiment includes a wooden substrate 12 and a decorative thin plate 14. Of course, the decorative thin plate 14 may be omitted, and the decorative material 10 may be configured with only the wooden substrate 12.

  The wooden substrate 12 is a long plate material such as solid wood, plywood, MDF, HDF, hard board, particle board, or insulation board. In particular, when solid wood is used, the decorative thin plate 14 is omitted. In this case, the surface of the solid wood, that is, the wooden substrate 12, becomes the surface of the decorative material 10, so that the solid wood with an appropriate surface pattern is used. Will be selected.

  For the decorative thin plate 14, a sheet material such as a veneer, paper, resin-impregnated paper, poly sand paper, or resin sheet having an appropriate surface pattern is used.

  In addition, when using the above-mentioned sheet material other than the veneer, use the one that is printed on the surface by a gravure wheel printing technique etc. Is preferred. Moreover, you may use what performed the inkjet printing as needed to the paper provided with the ink receiving layer, or the poly sand paper.

  In addition, the decorative thin plate 14 is attached to the surface of the wooden substrate 12 by means of adhesion or the like. As the material of the adhesive at that time, vinyl acetate resin, aqueous vinyl urethane resin, urethane foam resin, silicon Resin, hot melt resin, PUR (Poly Urethane Reactive) hot melt resin (that is, "PUR adhesive"), and the like.

  Of course, DAP impregnated paper, melamine impregnated paper or the like as the decorative thin plate 14 may be provided on the surface of the wooden substrate 12 without using an adhesive.

  Next, a manufacturing procedure for bending the decorative material 10 before bending into a finished product will be described.

  First, a decorative material 10 having a wood base 12 bonded and fixed to a decorative thin plate 14 is prepared, and the decorative material 10 is placed on the work table T with the decorative thin plate 14 facing down (FIG. 2A). Thereafter, a rectangular first groove 16 is formed from the opposite side (rear surface X) of the wood base 12 to the surface (front surface) on which the decorative thin plate 14 is attached, using a grinder or a router processing machine. (FIG. 2B). Thereafter, a V-shaped second groove 18 is further formed from the back surface X of the decorative material 10 using a V-shaped rotary saw (FIG. 2 (c)).

  In FIG. 2, the second groove 18 is formed to the vicinity of the front surface of the decorative thin plate 14 (the bottom 18 a of the second groove 18 reaches the decorative thin plate 14, but the decorative thin plate 14 is not cut). Is shown. Moreover, as shown in FIG. 2, when the thickness of the wooden substrate 12 is relatively thick, the first groove 16 is necessary to bend the decorative material 10, but the thickness of the wooden substrate 12 is thin. In FIG. 3, the first groove 16 may be omitted and only the second groove 18 may be formed.

  Further, before and after the step of forming the V-shaped second groove 18, it is desirable that the small pieces 10 a to 10 e of the decorative material 10 divided by the second groove 18 are completely fixed to the work table. As this fixing method, there are a method of mechanically fixing with a clamp, a pressing machine, a large saw-like fixing tool (so-called gang), an air adsorption, an adsorbent having an adsorbent on the surface, an adhesive having an adhesive on the surface. The method of fixing by fixing means, such as a tool, is mentioned. When using a transporter that may damage the surface of the plate material, such as an escape, it is preferable to contact the escape with the back X side.

  Furthermore, in order to cope with various width dimensions and thickness dimensions, it is desirable to suppress horizontal and vertical lifting using an air damper, an oil damper, a spring cushion, or the like.

  Moreover, when forming the 1st groove | channel 16 and the 2nd groove | channel 18, you may convey and convey a groove | channel while fixing the decorative material 10 with respect to the fixed grinder, the router, or the rotary saw. In this case, a method of transporting while being fixed mechanically by a clamp, a pressing machine, an escaper, etc., a method of transporting while being fixed by a fixing means such as air adsorption, suction tool, adhesive tool, etc., or an air damper, an oil damper, Or the method etc. which convey using a spring cushion etc., hold | suppressing floating, etc. can be considered. Of course, conversely, the grooves 16 and 18 may be formed by fixing a grinder or the like and moving the decorative material 10.

  In any case, in order to improve the groove machining accuracy, it is preferable to eliminate vertical blur due to cutting using a vertical pressing force. In this case, it is preferable from the viewpoint of improving the groove machining accuracy to press the position as close as possible to the portion where the grooves 16 and 18 are cut.

  The second groove 18 having a shape matching the shape of the rotary saw may have a bottom 18a (see FIG. 2 (c)) formed through the wood base 12 to the surface of the decorative thin plate 14, or as described above. Near the front of the surface of the thin plate 14 (in this case, the bottom 18a of the second groove 18 reaches the decorative thin plate 14, but the decorative thin plate 14 is not cut), or near the front of the decorative thin plate 14 (In this case, the bottom 18a of the second groove 18 does not reach the decorative thin plate 14).

  Further, it is formed by forming the second groove 18 by a single process using a rotary saw whose tip is formed in a V shape (90 ° or 45 ° saw blade in this embodiment). The angle of the slope can be made accurate and the finish can be made beautiful. Of course, instead of the rotary saw, the above-described router machine or the like may be used.

  Next, the hot-melt adhesive 20 and the water-based adhesive 22 are applied to the surface of the first groove 16 and the second groove 18 formed in the decorative material 10 and the back surface X of the decorative material 10 excluding the surfaces of the grooves 16 and 18. Is applied in a line in a desired direction (FIG. 2D). Specifically, for example, the position of the nozzle that supplies both adhesives 20 and 22 is fixed, while the adhesive 10 is fed using a feed roller while both adhesives 20 and 22 are applied in a straight line. To do. Of course, the decorative material 10 may be fixed, and both adhesives may be applied while moving the nozzle.

  Regarding the application positions of the hot melt adhesive 20 and the aqueous adhesive 22, as shown in the drawing, for example, the hot melt adhesive 20 that can be bonded instantaneously by cooling the temperature is used as the first groove 16 and the second groove. It is preferable to apply to each corner 24 of the decorative material 10 formed by 18 and apply the aqueous adhesive 22 to the surface of the second groove 18. An undesired position until the water-based adhesive 22 is dried and exerts an adhesive force when the hot melt adhesive 20 that has a fast time to cure bonds the corners 24 of the decorative material 10 to each other first. This is because the shape of the folded decorative material 10 can be prevented from collapsing due to the deviation.

  Also, the shape of the decorative material 10 may be changed as described above by applying the hot-melt adhesive 20 to the opening side of the grooves 16 and 18 and applying the aqueous adhesive 22 to the back side of the grooves 16 and 18. It is possible to prevent collapse as desired.

  After applying both adhesives 20 and 22, or during application, drying is performed until the water-based adhesive 22 can no longer exhibit the necessary adhesive force by the heat wire 26 previously disposed in the vicinity of the hot-melt adhesive 20. This is preferentially heated so that the hot melt adhesive 20 has a melting point or higher.

  The position where the hot wire 26 is disposed is a predetermined range from the application start position of the hot-melt adhesive 20 to the application end position, that is, to the extent that the predetermined adhesive force cannot be exhibited when the decorative material 10 is folded. It is up to the range of the hot melt adhesive 20 that gets cold. Needless to say, the hot-melt adhesive 20 in a range above or in the whole range may be intensively heated with the hot wire 26.

  The use of the heat wire 26 as a heat source prevents undesired heat from being applied to a position different from the target linear hot-melt adhesive 20 (particularly, the position where the aqueous adhesive 22 is applied). Therefore, the heat radiated from the narrow heating wire 26 is suitable for this purpose. Of course, the heater 26 is not limited to the heat ray 26 as long as it can control the range in which radiated heat is applied, and other types of heaters 26 can be used.

  Thus, after applying the hot-melt adhesive 20 and the water-based adhesive 22 to the surfaces of the first groove 16 and the second groove 18 formed in the decorative material 10, the first groove 16 and the second groove 18 are closed. In this way, the process of bending the decorative material 10 is completed by bending the decorative material 10 (FIG. 3E).

  As described above, the hot melt adhesive 20 is preferentially heated by the heat ray (heater) 26 disposed in the vicinity of the hot melt adhesive 20, so that the hot melt adhesive is bent when the decorative material 10 is folded. Since the temperature of 20 is equal to or higher than the melting point, the predetermined adhesive strength of the hot melt adhesive 20 can be exhibited. Further, since the hot melt adhesive 20 is heated preferentially, the aqueous adhesive 22 is not dried undesirably, and the adhesive force required for the aqueous adhesive 22 is maintained.

(Second embodiment)
A second embodiment will be described with reference to FIG. The first embodiment described above and the second embodiment are basically different from each other only in the method of heating the hot melt adhesive 20 intensively. The description of the common parts with the first embodiment in the description will be made with reference to the description of the first embodiment, omitting the description and focusing on the different parts.

  In the second embodiment, before the hot melt adhesive 20 is applied, the application position 28 of the hot melt adhesive 20 in the decorative material 10 is heated, and the temperature of the hot melt adhesive 20 applied by the heat is applied. Is maintained above the melting point.

  More specifically, after forming the first groove 16 and the second groove 18 (FIG. 4C), for example, the jig 30 whose tip is heated is pressed against the application position 28 of the hot melt adhesive 20. The application position 28 is heated (FIG. 4D). Of course, the heating method of the application position 28 is not limited to this, and means such as a hot roller, an electric heater, or a burner may be used as long as the linear application position 28 can be heated pinpointly. .

Thereafter, hot melt adhesive 20 and aqueous adhesive 22 are applied at predetermined positions (FIG. 4E), and the decorative material 10 is folded so as to close the first groove 16 and the second groove 18 ( FIG. 4 (f)).

  According to the present invention, since the application position 28 of the hot melt adhesive 20 in the decorative material 10 is preheated, the hot melt adhesive 20 applied to the position 28 is heated for a certain time after application. The heat from the applied decorative material 10 can be received, and the molten state can be maintained. On the other hand, since the water-based adhesive 22 far from the application position 28 of the hot-melt adhesive 20 is hardly affected by heat, the water-based adhesive 22 can be prevented from drying undesirably.

(Third embodiment)
A third embodiment will be described with reference to FIG. Similar to the second embodiment, the third embodiment will be described with a focus on differences from the first embodiment.

  In the third embodiment, the position of the decorative material 10 that contacts the hot melt adhesive 20 when the decorative material 10 is bent (hereinafter referred to as “contact position 32”) is heated and applied by the heat. The temperature of the hot melt adhesive 20 is set to the melting point or higher.

  More specifically, after forming the first groove 16 and the second groove 18 (FIG. 5C), for example, the hot roller 34 is pressed against the contact position 32 of the hot melt adhesive 20, and this application position is determined. 28 is heated (FIG. 5D). Of course, the heating method of the contact position 32 is not limited to this. If the linear contact position 32 can be heated pinpointly, the means such as an electric heater or a burner is used as in the second embodiment. May be.

  Thereafter, hot melt adhesive 20 and aqueous adhesive 22 are applied at predetermined positions (FIG. 5E), and the decorative material 10 is folded so as to close the first groove 16 and the second groove 18 ( FIG. 5 (f)).

  According to this embodiment, since the contact position 32 of the cosmetic material is preliminarily heated, even if the hot-melt adhesive 20 after application is cooled and solidified, the solidified hot-melt adhesive When the decorative material 10 is bent, the agent 20 contacts the heated contact position 32 in the decorative material 10 and melts by receiving heat from the contact position 32.

DESCRIPTION OF SYMBOLS 10 ... Cosmetic material: 12 ... Wood base material: 14 ... Cosmetic thin plate: 16 ... 1st groove | channel: 18 ... 2nd groove | channel: 18a ... (bottom of 2nd groove | channel): 20 ... Hot-melt-type adhesive agent: 22 ... Water-system adhesion | attachment Agent: 24 ... Corner: 26 ... Heating wire (heater): 28 ... Application position of (hot melt adhesive): 30 ... Jig: 32 ... Contact position (of hot melt adhesive): 34 ... Hot roller

Claims (5)

Form a groove for folding from the back of the long decorative material used for folding.
A hot melt adhesive and a water-based adhesive are linearly applied to the back surface of the decorative material including the surface of the groove,
In the manufacturing method of the decorative material, the groove is closed and the decorative material is bent.
At least when the decorative material is bent, the hot melt adhesive is preferentially heated to maintain the adhesive force necessary for the aqueous adhesive, and the temperature of the hot melt adhesive is set to the melting point or higher. A method for producing a cosmetic material, comprising: Applying the hot melt adhesive to the corner of the decorative material formed by the groove,
The method for producing a decorative material according to claim 1, wherein the water-based adhesive is applied to a surface of the groove.   The said hot-melt-type adhesive agent is heated with the heater arrange | positioned in the vicinity of the said hot-melt-type adhesive agent, The manufacturing method of the cosmetics of Claim 1 or 2 characterized by the above-mentioned.   The method for producing a cosmetic material according to claim 1 or 2, wherein the application position of the hot melt adhesive in the decorative material is heated before the hot melt adhesive is applied. Before bending the decorative material,
The method for producing a cosmetic material according to claim 1 or 2, wherein a position of the decorative material that comes into contact with the hot melt adhesive when the decorative material is folded is heated.

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