JP2008156868A - Flooring material with buffer material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flooring material 10 with a buffer material, which can be obtained by partially applying an adhesive 2 so as to bond and superpose the buffer material 3, and which enables the easy and sure execution of work for stripping, separating and recovering a floor base material 1 and the buffer material 3, while reducing the used amount of the adhesive. <P>SOLUTION: In this flooring material 10 with the buffer material, an application area of the adhesive 2 is set to be in the range of 30-70% of the backside area of the floor base material 1. The amount of the application of the adhesive per unit area in the area coated with the adhesive 2 is set equal to that of the application of the adhesive per unit area when buffer material is bonded and superposed by coating the whole backside of the floor base material 1 with the adhesive, or set to be increased by 40% or less. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a flooring with a cushioning material.

  A wood fiberboard such as plywood or MDF is used as a floor base material, and on the back side, a buffer made of a material different from the floor base material such as a nonwoven fabric or a synthetic resin foam (for example, EVA resin foam sheet: calp material). A flooring with a cushioning material having a structure in which materials are bonded and laminated is known. Such a flooring material with a cushioning material is excellent in sound insulation or sound insulation, and is widely used as a flooring material for direct attachment, for example. Moreover, in a flooring with a cushioning material, the floor base material and the cushioning material are partially bonded (Patent Document 1), the adhesive is applied to the entire back surface of the floor base material, and the adhesive coating amount is partially large. It is also known to form a part and bond a cushioning material to a floor base material (Patent Document 2).

JP 2000-274064 A JP-A-9-203195

  The flooring material with a buffering material in which the flooring material and the cushioning material are partially bonded as described in Patent Document 1, for example, an operation of separating and separating the flooring material and the cushioning material, which are different materials at the time of product disposal However, although it is considered that it becomes easier compared to the form in which the cushioning material is entirely bonded to the floor base material, no consideration has been given to the application amount of the adhesive when partially bonding. The flooring with cushioning material described in Patent Document 2 is basically a mode in which the cushioning material is adhered to the entire back surface of the floor base material, and there is a slight difficulty in separation and use of an adhesive. The amount is almost the same as that of the cushioning material that is entirely bonded to the floor base material.

  The present invention is a flooring material with a cushioning material, and can easily reduce the amount of adhesive used while separating and separating the floor base material and the cushioning material, which are different materials at the time of product disposal. It is an object of the present invention to provide a flooring material with a cushioning material that prevents the cushioning material from being carelessly separated at times.

  The flooring with a cushioning material according to the present invention is a flooring with a cushioning material comprising at least a configuration in which the cushioning material is laminated on the entire back surface of the floor base material to which the adhesive is partially applied via the adhesive. The application area of the adhesive is in the range of 30 to 70% of the back surface area of the floor base material, and the adhesive application amount per unit area in the region where the adhesive is applied is the back surface of the floor base material. It is characterized by being equal to the application amount per unit area of the adhesive when the adhesive is applied to the entire surface and the buffer material is adhesively laminated, or up to a 40% increase.

  In the flooring with a cushioning material described above, the cushioning material is bonded to the floor base material in the range of 30 to 70% of the back surface area of the floor base material. Separation of the cushioning material from the material is easy, and the amount of the cushioning material remaining on the floor base material after peeling can be reduced.

  In addition, the amount of adhesive applied per unit area in the area where the adhesive is applied is the amount per unit area of the adhesive when the adhesive is applied to the entire back surface of the floor base material and the buffer material is adhesively laminated. It is equal to the coating amount or in the range up to 40% increase, and in the experiments of the present inventors, by setting such an adhesive coating amount, the coating area of the adhesive is 30 to the back surface area of the floor base material. If it was in the range of 70%, it was possible to prevent the cushioning material from being carelessly peeled off from the end of the floor base material during construction. Furthermore, compared with the case where an adhesive is applied to the entire back surface of the floor base material, the amount of adhesive used can be reduced, resulting in a cost reduction.

  Even if the application amount of the adhesive is within the above range, if the application area is smaller than 30%, the cushioning material may inadvertently peel off from the end of the floor base material during transportation or construction. , Workability becomes worse. When the coating area exceeds 70%, it becomes difficult to separate the buffer material from the floor base material at the time of separation and collection, and the amount of the buffer material remaining on the floor base material side after the peeling increases. Furthermore, the effect of reducing the amount of adhesive used may not be brought about.

  In the flooring with a cushioning material according to the present invention, the flooring substrate used in the conventional flooring with a cushioning material can be arbitrarily used as the flooring base material. Plywood is generally used, but it may be a processed wood material including a wood fiber board such as MDF, or a composite base material of plywood and wood fiber board. The surface of the floor base material may be provided with makeup such as a veneer veneer, paper or a synthetic resin decorative sheet. The floor base material may have a rectangular shape or an oak shape. A plurality of long unit pieces may be integrated by joining together in an oak shape with an adhesive. In any case, an engaging means such as a book seed, a hire seed, a phase seed, etc. may be formed around the periphery.

  Moreover, the buffer material used by the conventional flooring material with a buffer material can also be used arbitrarily as a buffer material. Although it does not specifically limit, As an example, the nonwoven fabric and synthetic resin foam of about 2-5 mm in thickness are mentioned. In the case of synthetic resin foam, it may be open-celled or closed-celled, but if it is open-celled, there is a risk that the adhesive may excessively enter the buffer material through the open-cell, impairing the buffer function and sound insulation performance. In view of this, a closed cell type is more preferable. As an example of the synthetic resin foam, there can be mentioned an EVA resin foam sheet commonly called a calp material in the field of flooring. Moreover, the laminated body of a nonwoven fabric and a synthetic resin foam can also be used as a buffer material.

  In the experiments by the present inventors, when the buffer material is a nonwoven fabric, the amount of adhesive applied per unit area in the region where the adhesive is applied is preferably 9 to 12 g / (30 cm × 30 cm). In the case of an EVA-based resin foam sheet, the amount of adhesive applied per unit area in the region where the adhesive was applied was preferably 8 to 10 g / (30 cm × 30 cm). In addition, (30 cm × 30 cm) is used as a numerical value corresponding to a so-called squin angle.

  In the flooring with cushioning material according to the present invention, there is no particular limitation on the application region or the application shape of the adhesive to the floor base material, but at intervals so as to obtain a stable adhesive state with a small adhesive application area. It is desirable to apply the adhesive in a plurality of lines, and more preferably, the adhesive is applied around the floor base material.

  According to the present invention, in the flooring with a cushioning material obtained by partially applying an adhesive and bonding and laminating the cushioning material, it is easier to separate and collect the different types of floor base materials and the cushioning material. It is possible to perform reliably. In addition, the cost of use can be reduced by reducing the amount of adhesive used.

  Hereinafter, the present invention will be described based on embodiments with reference to the drawings. FIG. 1a is a cross-sectional view showing an example of a flooring material with a cushioning material according to the present invention, and FIG. 1b is a diagram illustrating a state in which an adhesive is partially applied to the floor base material of the flooring material with a cushioning material.

  In the figure, 1 is a floor base material in which four unit pieces 1a are assembled in the shape of an oak, for example, a thickness of 0.5 to 2 obtained by plywood or MDF with a thickness of 9 to 10 mm, or a plywood by half cutting or the like A laminate of 5 mm thin MDF is used. As shown in FIG. 1b, an adhesive 2 such as a vinyl acetate adhesive is applied to the back surface. In this example, the adhesive 2 is applied as five linear bodies at intervals, and the total application area of the adhesive 2 is in the range of 30 to 70% of the back surface area of the floor base material 1. . The application mode of the adhesive 2 is not limited to a plurality of linear bodies, and may be a regular dot pattern or the like. 3 is a buffer material, for example, a nonwoven fabric or an EVA resin foam sheet is used. The buffer material 3 is bonded and laminated on the surface of the floor base material 1 to which the adhesive 2 is applied, whereby the floor material 10 with the buffer material is obtained.

  The adhesive application amount per unit area in the region where the adhesive 2 is applied is, for example, 11 g / (30 cm × 30 cm) (a preferable value when the cushioning material is a nonwoven fabric). It is equal to the coating amount per unit area of the adhesive when the adhesive 2 is applied to the entire back surface of the substrate 1 and the buffer material 3 is bonded and laminated. That is, when the back surface area of the floor base material 1 is 30 cm × 90 cm, if an adhesive is applied thereto with the same application amount, 11 g / (30 cm × 30 cm) × 3 times, that is, 33 g of adhesive is required. However, the amount of adhesive applied on the floor substrate 1 according to the present invention shown in the figure is in the range of 11 g / (30 cm × 30 cm) × 3 times × (0.3 to 0.7), and 9.9 g to The range is 23.1 g.

  In addition, the amount of adhesive applied per unit area in the region where the adhesive 2 is applied is the same as the amount of adhesive when the buffer material 3 is adhesively laminated by applying the adhesive 2 to the entire back surface of the floor base material 1. In the case of 40% increase over the coating amount per unit area (for example, 11 g / (30 cm × 30 cm)), the adhesive coating amount per unit area in the region where the adhesive 2 is applied is 11 g / (30 cm × 30 cm) × 1.4 = 15.4 g / (30 cm × 30 cm) Even in this case, the applied amount of the adhesive on the floor base material 1 according to the present invention is 15.4 g / ( 30 cm × 30 cm) × 3 times × (0.3 to 0.7), which is in the range of 13.86 g to 32.34 g, and does not exceed 33 g at the maximum.

  Further, when the adhesive application amount per unit area in the region where the adhesive 2 is applied is, for example, 9 g / (30 cm × 30 cm) (a preferable value when the buffer material is the above-described calp material). When the back surface area of the floor base material 1 is 30 cm × 90 cm, if an adhesive is applied thereto with the same application amount, 9 g / (30 cm × 30 cm) × 3 times, that is, 27 g of adhesive is required. However, the coating amount of the adhesive on the floor substrate 1 according to the present invention shown in the figure is in the range of 9 g / (30 cm × 30 cm) × 3 times × (0.3 to 0.7), and 8.1 g to 18 The range is .9 g. Even when the amount is increased by 40%, it does not exceed 27 g.

  As described above, in the flooring 10 with the cushioning material according to the present invention, the cushioning material 3 is in a bonded state in the range of 30 to 70% of the back surface of the floor base material 1, and the floor is a different material at the time of separation and collection The base material 1 and the buffer material 3 can be separated and separated easily and reliably. Further, since the amount of adhesive used can be reduced, the manufacturing cost is also reduced. Furthermore, the cushioning material is not inadvertently isolated from the end of the floor base material during construction or the like.

FIG. 1a is a cross-sectional view showing an example of a flooring with a cushioning material according to the present invention, and FIG. 1b is a diagram illustrating a state in which an adhesive is partially applied to a floor base material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Floor material with buffer material, 1 ... Floor base material, 2 ... Adhesive, 3 ... Buffer material

Claims (4)

  A flooring with a cushioning material comprising at least a configuration in which a cushioning material is laminated on the entire back surface of a floor base material partially coated with an adhesive via the adhesive, the coating area of the adhesive being the floor The amount of adhesive applied per unit area in the area where the adhesive is applied ranges from 30 to 70% of the back surface area of the base material. A flooring with a cushioning material, characterized in that the amount is equal to the coating amount per unit area of the adhesive when laminating and laminating, or up to a 40% increase.   The cushioning material is a nonwoven fabric, and the amount of adhesive applied per unit area in the region where the adhesive is applied is 9 to 12 g / (30 cm x 30 cm). Flooring.   The buffer material is an EVA-based resin foam sheet, and an adhesive application amount per unit area in a region where the adhesive is applied is 8 to 10 g / (30 cm × 30 cm). Flooring with cushioning material.   The flooring material with a cushioning material according to any one of claims 1 to 3, wherein the adhesive is applied as a plurality of linear bodies with intervals.

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