JP6654083B2 - Manufacturing method of decorative paste interior material - Google Patents

Description

  The present invention relates to a method for producing a decorative paste interior material.

  Flooring used in detached houses, condominiums, and other buildings includes solid flooring made of solid wood and base materials (hereinafter referred to as “lamination bases”) that are laminated with wood boards such as plywood, MDF, and particle board. A decorative flooring material is used in which a decorative material such as a veneer veneer or a ground plate is adhered to the surface of the material. In addition, as interior materials such as wall materials, ceiling materials, and staircase materials, those obtained by attaching a decorative material to the surface of a base material are used.

  The interior material of the decorative paste uses a base material that has less expansion and shrinkage due to moisture than solid material, and various coatings are applied to the surface to prevent moisture from entering the interior. It has been used in many construction sites because of its low warpage and easy handling in the usage environment.

The applicant disclosed in Patent Document 1 a laminated base obtained by laminating a surface layer board (wood fiber board having a thickness of 0.2 mm or more and less than 0.5 mm and a density of 0.7 g / cm ³ or more) on the surface of a wood board. We have proposed a decorative flooring material with a decorative material attached to the surface of the material.

  When manufacturing interior decorative material such as decorative floor material, a laminated base material is usually manufactured in advance, and after curing for a certain period of time, the decorative material is attached to the surface of the laminated base material and pressed. You.

Patent Document 2 discloses a step of applying an adhesive to the surface of a plywood, a step of placing a wood fiber board or a resin-impregnated paper on the plywood to which the adhesive has been applied, and a step of applying an adhesive on the plywood. Applying a glue to the surface of the wood fiberboard or resin-impregnated paper placed thereon by using a roll coater, and placing the surface decorative material on the woodfiber board or resin-impregnated paper to which the adhesive has been applied And a step of hot-pressing a laminate in which plywood, a wood fiber board or a resin-impregnated paper, and a surface decorative material are sequentially laminated via an adhesive, and the adhesive applied to the surface of the plywood is 25,000 to 72000 mPa. A method for producing a decorative composite board having a viscosity of s / 2 to 30 ° C. and an adhesive applied amount of 8.0 to 9.0 g / scale ² is described.

JP 2001-096512 A JP 2015-150816 A

  As in the invention described in Patent Document 1, when a thin material having a thickness of 0.2 mm or more and less than 0.5 mm is used for a part of the base material constituting the laminated base material, a wooden board, a base material surface layer After the three layers of the board and the decorative layer are sequentially laminated, they can be simultaneously bonded (see paragraph 0060 of Patent Document 1). However, when the warpage of the base material is large, or when a strong impact is applied during the process, there is a high possibility that the base material is displaced. Such a shift is remarkable when the base material constituting the laminated base material is thick.

  On the other hand, as in the invention described in Patent Document 2, when the viscosity of the adhesive is increased, workability is poor, and when the amount of application is limited, poor adhesion may occur.

  The present invention has been made in order to solve the problems of the prior art, and regardless of the type and degree of warpage of the base material, and without limiting the application conditions of the adhesive, the laminated base material can be precisely formed. It is an object of the present invention to provide a method capable of attaching a cosmetic material to a product.

  The gist of the present invention is as follows.

[A] a method for producing a decorative paste interior material,
(1) applying a first adhesive to the surface of the first substrate;
(2) placing the second substrate on the surface of the first substrate on which the first adhesive has been applied, to obtain an unbonded laminated substrate;
(3) pressing the unbonded laminated base material under insufficient conditions for curing the first adhesive to obtain a temporarily bonded laminated base material;
(4) applying a second adhesive to the surface of the temporary adhesive laminated base material;
(5) placing a decorative material on the surface of the temporary adhesive laminated base material to which the second adhesive has been applied, to obtain an unbonded decorative paste interior material;
(6) pressing the non-adhesive decorative paste interior material under conditions sufficient for curing the first adhesive and the second adhesive to obtain a decorative paste interior material; Method.

[B] The method for producing a decorative paste interior material according to [A], wherein the step (3) comprises pressing under conditions that do not satisfy at least one of the following (a) to (c).
(a) The temperature is higher than the temperature required for curing the first adhesive
(b) The pressure is higher than the pressure required for curing the first adhesive.
(c) The time is equal to or longer than the time required for curing the first adhesive. [C] The makeup of [B], in which the step (3) is pressed under conditions that do not satisfy at least the above (c). Manufacturing method of pasted interior material.
[D] The method for manufacturing a decorative paste interior material according to [B] or [C], wherein in the step (3), at least a surface on which the decorative material is to be bonded is heated.
[E] The method for producing a decorative paste interior material according to any one of [A] to [D], wherein the time from the end of the step (3) to the start of the step (6) is 30 minutes or less.

  ADVANTAGE OF THE INVENTION According to this invention, a decorative material can be stuck to a laminated base material with high precision regardless of the kind of a base material, and the degree of curvature, and without restricting the application conditions of an adhesive.

The figure which illustrated the makeup paste interior material concerning this embodiment The figure which illustrated the manufacturing method of the decorative paste interior material concerning this invention

1. As to the decorative paste interior material, as shown in FIG. 1, the decorative paste interior material 10 according to the present embodiment includes a first base material 1, a second base material 2 attached to the first base material 1, A decorative material 3 attached to the base material 2. The decorative-paste interior material 10 according to the present embodiment may further include the moisture-proof sheet layer 4 attached to the back surface of the first base material 1. Examples of the decorative paste interior material 10 include a floor material, a wall material, a ceiling material, a staircase material, and the like. The floor material has the most remarkable effect of the present invention.

  As the first base material 1, there is no particular limitation, but similarly to the second base material, for example, besides plywood, wood fiber board such as MDF, hard board, insulation board, particle board, wood board such as OSB, etc. Can be used. There is no particular limitation on the thickness of the wooden board layer, and an appropriate thickness may be selected according to the use of the floor material, wall material, ceiling material, staircase material and the like. As the dimensions of the first base material 1, for example, a size of 1 × 6 (about 303 mm × about 1818 mm), a size of 3 × 6 (about 909 mm × about 1818 mm) can be used.

  The second base material (surface base material) 2 is not particularly limited. For example, a wood fiber board such as an MDF, a hard board, or an insulation board, a particle board, or a wood board such as an OSB can be used. In addition, for example, a veneer such as lauan, falcata, eucalyptus, chamelere, rubber, cedar, and larch may be used. The thickness of the wooden board layer is preferably set to 0.2 to 4.0 mm. It may be divided in the thickness direction. As the dimensions of the second base material 2, for example, a size of 1 × 6 (about 303 mm × about 1818 mm), a size of 3 × 6 (about 909 mm × about 1818 mm), or the like can be used.

  As the decorative material 3, for example, a decorative material that is attached to the surface of an interior material, such as a processed sheet of wood such as a veneer or a ground plate, a decorative sheet in which a color pattern is printed on a sheet such as a resin film or paper, or the like is used. Can be. As the decorative material 3, a thickness of 0.05 to 3.0 mm is generally used, but it is not limited to such a thickness. In particular, it is preferable to use one having a thickness of 1.0 mm or less, which can be easily attached by hot pressing.

Although there is no particular limitation on the moisture-proof sheet layer 4, for example, a PET film or a polyolefin film (such as polyethylene or polypropylene) can be used. According to JIS K 7129B, the moisture-proof sheet layer 4 has, for example, a water vapor permeability of 5 g / m ² · d or less, and preferably 4 g / m ² · d or less. The moisture-proof sheet layer 4 can effectively prevent moisture from entering from the back surface side of the first base material 1. The moisture-proof sheet layer 4 may be fixed to the first base material 1 by a fixing member other than the adhesive.

2. About the manufacturing method of a decorative paste interior material Hereinafter, the manufacturing method of the decorative paste interior material according to the present invention will be described.
As shown in FIG. 2, the method for producing a decorative paste interior material according to the present invention includes:
(1) Step S1 of applying the first adhesive 1a to the surface of the first base material 1,
(2) placing the second substrate 2 on the surface of the first substrate 1 on which the first adhesive 1a has been applied, to obtain an unbonded laminated substrate 10a;
(3) Step S3 of pressing the unbonded laminated base material 10a under conditions insufficient for curing the first adhesive 1a to obtain a temporarily bonded laminated base material 10b;
(4) Step S4 of applying the second adhesive 2a to the surface of the temporary adhesive laminated base material 10b.
(5) Step S5 of placing the decorative material 3 on the surface of the temporary adhesive laminated base material 10b to which the second adhesive 2a has been applied to obtain an unbonded decorative adhesive interior material 10c.
(6) A step S6 of pressing the unbonded decorative interior material 10c under conditions sufficient for curing the first adhesive 1a and the second adhesive 2a to obtain the decorative interior material 10 is provided.

  Thus, the decorative material can be accurately adhered to the laminated base material regardless of the type of the base material and the degree of warpage and without restricting the application conditions of the adhesive.

There is no particular limitation on the first adhesive 1a used in step S1 of the above (1), for example, melamine urea copolymer adhesive, styrene butadiene latex adhesive, modified vinyl acetate adhesive, vinyl acetate adhesive And an aqueous vinyl urethane adhesive. A pressure-sensitive adhesive such as an adhesive may be used. The application amount depends on the type of the adhesive, but is preferably adjusted, for example, in the range of 80 to 180 g / m ² .

  The application amount of the first adhesive 1a in the step S1 of the above (1) may be appropriately set according to the type of the base material, the surface condition, the type of the adhesive, and the like, in a range in which defects such as poor adhesion and protrusion do not occur. I just need. The method of applying the first adhesive 1a is not particularly limited, and for example, a known method such as a method using a spreader (roll) or a method using spraying can be adopted.

  In step S2 of the above (2), for example, the second base material 2 having substantially the same dimensions as the first base material 1 is placed on the surface of the first base material 1 on which the first adhesive 1a is applied. At this time, the first substrate 1 and the second substrate 2 are in an unbonded state. The first base material 1 and the second base material 2 in this state are referred to as an unbonded laminated base material 10a.

  In step S3 of the above (3), the unbonded laminated base material 10a is pressed under conditions that are insufficient for curing the first adhesive 1a. At this time, the first base material 1 and the second base material 2 are not completely bonded. The first base material 1 and the second base material 2 in this state are referred to as a temporarily bonded laminated base material 10b.

  Here, since the unbonded laminated base material 10a obtained in step S2 of the above (2) is only stopped by the tacking force of the first adhesive 1a, for example, the second base material 2 has a large warp. In such cases, deviations are likely to occur. In particular, when the second base material 2 is relatively thick, 1.0 mm or more, or even 2.0 mm or more, the second base material 2 is hardly adapted to the first base material 1 and the work is subjected to an impact in various manufacturing processes and transport processes. In such a case, misalignment is likely to occur. However, although the temporary adhesive laminated base material 10b in the step S3 of the above (3) is not completely adhered, the first base material 1 and the second base material 2 are in a state of close contact by pressing. Therefore, displacement can be effectively prevented. At this time, it is important not to completely cure the first adhesive 1a. At this time, if the first adhesive 1a is to be completely cured, the pressing time is lengthened and the productivity is deteriorated. The complete curing of the first adhesive 1a is performed in step S6 of the latter stage (6).

  The pressing method is not particularly limited. For example, the pressing may be performed by a flat plate pressing method, a roll pressing method, or the like. At this time, in order to uniformly apply pressure and heat to the entire surface and prevent the occurrence of unevenness in appearance, it is preferable to press each sheet one by one without overlapping a plurality of unbonded laminated base materials 10a. At this time, either cold pressure or hot pressure may be used, but it is preferable to heat at least the surface where the decorative material 3 is to be bonded, that is, the exposed surface of the second base material 2. This is because the temperature of the second base material 2 rises, and it is possible to shorten the heat-pressure time in the step (S6) of the latter stage (6).

Note that the adhesive may be partially cured by using a heating device such as electric heating or high frequency, and partial pressing may be performed without applying pressure to the entirety. May cause Therefore, the conditions for completely curing the first adhesive 1a existing between the first base material 1 and the second base material 2 vary depending on the specification of the adhesive to be used. The temperature, time and pressure at the time of pressing are important. That is, it is necessary for the first adhesive to cure that the pressing satisfying all the following conditions is performed.
(a) The temperature must be higher than the temperature required for curing the first adhesive 1a
(b) The pressure is higher than the pressure required for curing the first adhesive 1a
(c) The time is longer than the time required for curing the first adhesive 1a

  However, in step S3 of the above (3), it is preferable to perform the pressing under a condition that does not satisfy any one or more of the above (a) to (c). In particular, if the pressing is performed under a condition that does not satisfy the above (a), the heat energy required at the time of manufacturing can be reduced, and the manufacturing cost can be reduced. If the pressing is carried out under the condition not satisfying the above (b), the energy required for the production can be reduced, and the time required for the pressing can be shortened when a flat plate press is used. If the pressing is performed under the condition not satisfying the above (c), the pressing time can be shortened, and the productivity is improved. For this reason, from the viewpoint of improving the productivity and securing the minimum adhesiveness, it is preferable to perform the process under the condition that at least the above (c) is not satisfied.

  The time from the placing of the second base material 2 on the first base material 1 in the step S2 of the above (2) to the start of the pressing in the step S3 of the above (3) (closed deposition time) is 5 Minutes or less. If this time is too long, there is a possibility that a sufficient adhesive force may not be exhibited even if pressing is performed in step S6 of the following (6). This is because they may be warped by the influence of moisture or the like. The closed deposition time is more preferably 3 minutes or less, preferably 2 minutes or less, and more preferably 1 minute or less.

In the case of a normal adhesive, a pressure of 8.0 kg / cm ² or more is required. However, the pressing in step S3 of the above (3) is specifically performed at a pressure of 7.0 kg / cm ² or less. is preferably carried out at a pressure, 5.0 kg / cm ² or less, more, and more preferably, 4.0 kg / cm ² or less. This is because the smaller the pressing pressure, the shorter the process time including the time for raising the pressure and the time for lowering the pressure, thereby enabling efficient production. However, in order to obtain the minimum adhesiveness, the pressure is preferably 0.5 kg / cm ² or more, more preferably 1.0 kg / cm ² or more.

  Further, in the case of a normal adhesive, a pressing time of 30 seconds or more is required even if the second base material 2 is thin, and a pressing time of 60 seconds or more is required if the second base material 2 is thick. Specifically, it is preferably set to 10 seconds or less. In such a short time, it is possible to perform pressure clamping without decreasing the line speed. The pressing time is more preferably 5 seconds or less, preferably 3 seconds or less, 1 second or less, and more preferably 0.8 seconds or less. However, in order to obtain the minimum adhesiveness, the pressing time is preferably set to 0.1 second or more. Here, in the case of the method using a flat plate press, the pressing time is the time from when the press pressure reaches a predetermined pressure (the pressure set for temporary bonding) to when the pressure starts to decrease, and Means the transit time.

There is no particular limitation on the second adhesive 2a used in step S4 of the above (4), but, for example, a melamine urea copolymer adhesive, a styrene butadiene latex adhesive, a modified vinyl acetate adhesive, a vinyl acetate adhesive And an aqueous vinyl urethane adhesive. The application amount depends on the type of the adhesive, but is preferably adjusted, for example, in the range of 60 to 120 g / m ² .

  The amount of the second adhesive 2a applied in step S4 of the above (4) is not particularly limited, but defects such as poor adhesion and protrusion may occur depending on the type of the base material, the surface condition, the type of the adhesive, and the like. It may be set appropriately within a range that does not exist. There is no particular limitation on the method of applying the second adhesive 2a, and for example, a known method such as a method using a spreader (roll) or a method using spray can be adopted. If the temporary bonding is not performed in step S3 of the above (3), there is a problem that the second base material 2 is displaced when the adhesive is applied by the roll, or the second base material 2 is entangled in the roll. Can occur.

  The time from the end of the temporary bonding in the step S3 of the above (3) to the start of the application of the second adhesive 2a in the step S4 of the above (4) is not particularly limited, but is preferably 3 minutes or less. Preferably, the time is 2 minutes or less, 1 minute or less, and more preferably 30 seconds or less.

  In step S5 of the above (5), the cosmetic material 3 is placed on the surface of the temporary adhesive laminated base material 10b to which the second adhesive 2a has been applied as soon as possible after the end of the step S4 of the above (4). . At this time, the temporary adhesive laminated base material 10b and the decorative material 3 are in an unbonded state. The temporary adhesive laminated base material 10b and the decorative material 3 in this state are referred to as a non-adhesive decorative paste interior material 10c.

  In step S6 of the above (6), the decorative adhesive interior material 10 is manufactured by pressing the non-adhesive decorative adhesive interior material 10c under conditions sufficient for curing the first adhesive 1a and the second adhesive 2a. I do. It should be noted that the pressing under conditions sufficient for curing the first adhesive 1a and the second adhesive 2a means that not only the case where the first adhesive 1a and the second adhesive 2a are completely cured immediately after the pressing in step S6 of (6), but also the subsequent This includes the case where curing (reaction, drying, etc.) progresses during transport and deposition to complete curing.

  The pressing is preferably performed by hot pressing with a single-stage or multi-stage hot press, for example. The pressing temperature is selected depending on conditions such as an adhesive. In the case of a normal adhesive, the temperature is 70 ° C. or higher. Since the pressing time can be shortened as the pressing temperature is higher, the temperature is particularly preferably 80 ° C or more, more preferably 90 ° C or more. However, if the temperature is too high, defects such as poor adhesion and blistering may occur. Therefore, the temperature is preferably 140 ° C or lower, more preferably 130 ° C or lower.

The pressing pressure is preferably 5 kg / cm ² or more, more preferably 6 kg / cm ² or more, because too low a pressure may cause poor adhesion. On the other hand, even if the pressing pressure is too high, only the energy cost is increased, so that the pressure is preferably 10 kg / cm ² or less, more preferably 9 kg / cm ² or less.

  If the pressing time is too short, it causes adhesion failure. Therefore, the pressing time is preferably at least 20 seconds, more preferably at least 30 seconds, particularly preferably at least 40 seconds. On the other hand, if the length is too long, the productivity is deteriorated, and the water content of the surface may be lowered and warpage may be caused. The pressing time is more preferably 80 seconds or less, preferably 70 seconds or less, and more preferably 60 seconds or less.

  If the time from the end of the step S3 of the above (3) to the start of the step S6 of the above (6) is too long, the gap between the first base material 1 and the second base material 2 is insufficiently tightened. Since the first adhesive 1a is solidified, it is preferable to set the time to 30 minutes or less. In particular, it is preferably 20 minutes or less, more preferably 10 minutes or less, and more preferably 5 minutes or less. The above steps (1) to (6) may be deposited and moved to another line in the middle, but are preferably performed continuously on the same line. This is because the drying of the first adhesive 1a is suppressed, and the pressure-tightening in step S6 of the above (6) facilitates reliable bonding.

In Example 1, a modified vinyl acetate-based adhesive (first adhesive) was applied to the surface of a plywood (first substrate) having a thickness of 9.0 mm, and a 2.7 mm MDF (second substrate) was placed thereon. Then, compression was performed for temporary bonding. At this time, the first adhesive was applied by a spreader. The coating amount was 120 g / m ² . In addition, the time from the placement of the second base material 2 on the first base material 1 to the start of pressing for temporary bonding (closed deposition time) was 20 seconds. Pressing for temporary bonding was performed by a flat plate press under the conditions of a temperature of 120 ° C. (only the press plate on the second substrate side was heated), a pressure of 3 kg / cm ² , and a time of 0.5 second.

Then, a melamine urea copolymer adhesive (second adhesive) is applied to the surface of the second base material, a veneer veneer veneer having a thickness of 0.3 mm is placed thereon, and pressure-fixing for final bonding is performed. went. At this time, the second adhesive was applied by a spreader. The coating amount was 80 g / m ² . The time from the end of the pressing for temporary bonding to the start of the application of the second adhesive was 20 seconds. In addition, the time from the end of the pressing for the temporary bonding to the pressing for the final bonding was 3 minutes. Pressing for the actual bonding was performed by a flat plate press under the conditions of a temperature of 110 ° C. (heating both press plates), a pressure of 7 kg / cm ² , and a time of 60 seconds. The total pressing time was 60.5 seconds.

As Example 2, a melamine urea copolymer adhesive (first adhesive) was applied to the surface of a plywood (first substrate) having a thickness of 11.2 mm, and a 0.5 mm MDF (second substrate) was placed. Then, compression was performed for temporary bonding. At this time, the first adhesive was applied by a spreader. The coating amount was 120 g / m ² . In addition, the time from the placement of the second base material 2 on the first base material 1 to the start of pressing for temporary bonding (closed deposition time) was 20 seconds. Pressing for temporary bonding was performed by a flat plate press under the conditions of a temperature of 120 ° C. (only the press plate on the second substrate side was heated), a pressure of 3 kg / cm ² , and a time of 0.5 second.

Then, a melamine urea copolymer adhesive (second adhesive) is applied to the surface of the second base material, a veneer veneer veneer having a thickness of 0.3 mm is placed thereon, and pressure-fixing for final bonding is performed. went. At this time, the second adhesive was applied by a spreader. The coating amount was 80 g / m ² . The time from the end of the pressing for temporary bonding to the start of the application of the second adhesive was 20 seconds. In addition, the time from the end of the pressing for the temporary bonding to the pressing for the final bonding was 3 minutes. Pressing for the actual bonding was performed by a flat plate press under the conditions of a temperature of 110 ° C. (heating both press plates), a pressure of 7 kg / cm ² , and a time of 60 seconds. The total pressing time was 60.5 seconds.

As Comparative Example 1, a modified vinyl acetate adhesive (first adhesive) was applied to the surface of a plywood (first substrate) having a thickness of 9.0 mm, and a 2.7 mm MDF (second substrate) was placed. Then, compression was performed for the actual bonding. At this time, the first adhesive was applied by a spreader. The coating amount was 120 g / m ² . In addition, the time from the placement of the second substrate 2 on the first substrate 1 to the start of pressing (closed deposition time) was 60 seconds. The pressing for the actual bonding was performed by a flat plate press under the conditions of a temperature of 110 ° C. (heating the press plates on both sides), a pressure of 7 kg / cm ² , and a time of 80 seconds.

After curing for one day, apply a melamine urea copolymer adhesive (second adhesive) to the surface of the second base material, place a 0.3 mm thick wet veneer veneer, and apply Was pressed. At this time, the second adhesive was applied by a spreader. The coating amount was 80 g / m ² . Pressing for the actual bonding was performed by a flat plate press under the conditions of a temperature of 110 ° C. (heating both press plates), a pressure of 7 kg / cm ² , and a time of 60 seconds. The total pressing time was 140 seconds.

As Comparative Example 2, a modified vinyl acetate adhesive (first adhesive) was applied to the surface of a plywood (first substrate) having a thickness of 9.0 mm, and a 2.7 mm MDF (second substrate) was placed. Then, a melamine urea copolymer adhesive (second adhesive) is applied to the surface of the second base material, a 0.3 mm-thick wet veneer veneer is placed, and the pressure for the final bonding is set. Was tightened. Pressing for temporary bonding was not performed.
The first adhesive was applied by a spreader. The coating amount was 120 g / m ² . The second adhesive was applied by a spreader. The coating amount was 80 g / m ² . Pressing for the actual bonding was performed by a flat plate press under the conditions of a temperature of 110 ° C. (heating both press plates), a pressure of 7 kg / cm ² , and a time of 60 seconds.

  In Examples 1 and 2, and Comparative Examples 1 and 2, when the slippage of the second base material of the final product was examined, the slippage occurred in Comparative Example 2, but Examples 1 and 2 and In Comparative Example 1, no misalignment occurred. Further, in Comparative Example 1, the total pressing time was as long as 140 seconds, while in Examples 1 and 2, both products were as short as 60.5 seconds, and a product without sticking efficiently was obtained in a short time. It was confirmed that it could be produced.

  ADVANTAGE OF THE INVENTION According to this invention, a decorative material can be stuck to a laminated base material with high precision regardless of the kind of a base material, and the degree of curvature, and without restricting the application conditions of an adhesive.

DESCRIPTION OF SYMBOLS 1 1st base material 1a 1st adhesive 2 2nd base material 2a 2nd adhesive 3 Decorative material 4 Moistureproof sheet layer 10 Interior material 10a according to this embodiment Unbonded laminated base material 10b Temporary bonded laminated base material 10c Unbonded Interior decoration material

Claims (7)

A method for producing a decorative paste interior material,
(1) applying a first adhesive to the surface of the first substrate;
(2) placing the second substrate on the surface of the first substrate on which the first adhesive has been applied, to obtain an unbonded laminated substrate;
(3) pressing the unbonded laminated base material under insufficient conditions for curing the first adhesive to obtain a temporarily bonded laminated base material;
(4) applying a second adhesive to the surface of the temporary adhesive laminated base material;
(5) placing a decorative material on the surface of the temporary adhesive laminated base material to which the second adhesive has been applied, to obtain an unbonded decorative paste interior material;
(6) the non-bonded decorative lamination interior material, under conditions sufficient to cure the first adhesive and the second adhesive, and pressing, comprising the step of obtaining a decorative lamination interior material,
The first substrate is plywood, wood fiber board, particle board or OSB,
The second base material is a veneer, a wood fiber board, a particle board, or an OSB.
Manufacturing method of decorative paste interior material. The method for manufacturing a decorative-paste interior material according to claim 1, wherein in the step (3), the pressing is performed under a condition that does not satisfy at least one of the following (a) to (c).
(a) The temperature is higher than the temperature required for curing the first adhesive
(b) The pressure is higher than the pressure required for curing the first adhesive.
(c) The time required for curing the first adhesive is not less than   3. The method for producing a decorative-paste interior material according to claim 2, wherein in the step (3), pressing is performed under a condition that does not satisfy at least the above (c).   The method for producing a decorative-pasted interior material according to claim 2 or 3, wherein in the step (3), at least a surface of the decorative material to be bonded is heated.   The method for producing a decorative-paste interior material according to any one of claims 1 to 4, wherein a time from the end of the step (3) to the start of the step (6) is 30 minutes or less. The second substrate has a thickness of 1.0 mm or more,
  A method for producing a decorative paste interior material according to any one of claims 1 to 5.   In the step (3), 7.0 kg / cm ² Below, 0.5kg / cm ² Pressing with the above pressure,
  A method for producing a decorative paste interior material according to any one of claims 1 to 6.

Images