JPH10114020A - Lamination finishing material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a material to be made to have scratch resistance as a finishing material even when a decorative material is a thin plate or a soft material by forming a rigid layer in a layer right under the decorative material. SOLUTION: A back sheet 2 in which glass fibers are impregnated with a thermosetting resin and the resin is cured is laminated on the back of a decorative material 1. As for the sheet 1, a sliced veneer such as an oak veneer, a paper, a plastic sheet of vinyl chloride, etc., a can be used. One in which grain is printed on paper and uneven machining is applied along the grain has the feeling of a material and can be used preferably as the material 1. As regards glass fibers which form the sheet 2, a fabric, a nonwoven fabric, and a net can be used, and especially, as regards the nonwoven fabric, fibers cut in 3-50mm as a fiber raw material are machined into paper by a wet paper making process, or into a mat by a dry nonwoven fabric making method, and the paper and the mat which are bound by a binder resin to make a product to be used appropriately.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated finishing material used for floors, walls, ceilings, etc. as an interior material for buildings, or as an interior material for furniture or automobiles, and as a surface finishing material for various works. About.

[0002]

2. Description of the Related Art As an interior finishing material, a laminated finishing material in which a thin decorative board is stuck on the surface of a plywood or the like is widely used. Alternatively, a material in which a vinyl chloride sheet, printed paper, a plastic sheet, or the like is attached to the surface of a particle board or a plywood is known.

[0003]

However, the interior finishing material often comes into contact with an object for the purpose of use, so that the finished surface is scratched (especially dents) and the appearance is deteriorated. In particular, when the decorative material is a thin material such as veneer, paper, or the like, it was not possible to prevent the surface from being broken due to dents.

Therefore, according to the present invention, by forming a hard layer directly below the decorative material, even if the decorative material is a thin plate or a soft material, it can be made a material which is hardly damaged as a finishing material. In other words, an object of the present invention is to provide a laminated finishing material having excellent scratch resistance at low cost.

[0005]

In order to achieve the above-mentioned object, the present invention comprises a back sheet in which a thermosetting resin is impregnated into glass fiber and cured by curing, on the back surface of a decorative material.

[0006]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

In the embodiment shown in FIG. 1, a back sheet 2 in which a thermosetting resin is impregnated with a glass fiber and cured is bonded to the back surface of a decorative material 1. As the decorative material 1, a veneer such as a veneer veneer (thickness of about 0.3 mm to 1.0 mm), paper, a nonwoven fabric, a woven fabric, a plastic sheet of vinyl chloride or the like can be used. A material obtained by printing wood grain on paper and performing unevenness processing along the wood grain has a texture and can be suitably used as the decorative material 1. The glass fiber forming the back sheet 2 may be a woven fabric, a nonwoven fabric, or a net-like one. In particular, regarding the nonwoven fabric, a fiber cut to 3 to 50 mm as a fiber raw material is prepared by wet papermaking or dry nonwoven fabric production. What has been matted by the above and bonded with a binder resin is suitably used. The short fiber having a glass fiber length of less than 3 mm has a low reinforcing effect, while the long fiber exceeding 50 mm has a low reinforcing effect.
It is difficult to form a uniform sheet, and as a result, an excellent reinforcing effect cannot be obtained. In addition, short fibers of 3 to 15 mm account for 2% of all fibers.
It is preferable that it is 0 to 100% from the viewpoint of strength (reinforcing property) and uniformity of the nonwoven fabric. If the short fibers are less than 20%, uniformity of the nonwoven fabric cannot be achieved. Mixing short fiber cellulose pulp or the like in addition to these fiber materials may be used. When using glass fibers, the reinforcing effect can be enhanced by coating the fiber surface with a silane coupling agent. The non-woven fabric containing glass fibers is formed into a sheet by a method of mechanically, chemically, thermally or using a solvent by bonding and / or entanglement of raw fibers, or a combination thereof. Further, from the viewpoint of impregnation, defoaming, sheet substrate strength, handling, and scratch resistance of the molded product, the basis weight is 50 to 2
00 g / m ² is desirable. Glass nonwoven fabric has a basis weight of 50
When the amount is less than g / m ² , scratch resistance is hardly developed and 200
If the amount is more than g / m ² , it becomes difficult to impregnate the resin. Examples of the thermosetting resin impregnated into such glass fibers include a phenol resin obtained by a reaction of a phenol and an aldehyde, and a curing agent added to an oligomer having a reactive epoxy group at a terminal. Epoxy resin,
Examples thereof include a thermosetting ethylene vinyl acetate copolymer, an unsaturated polyester resin, a urea resin, a melamine resin, and a urethane resin.In addition, various fillers such as lead stearate, dibutyltin dilaurate, carbon black, calcium carbonate, Titanium white, mica, glass spheres, aluminum hydroxide, antimony oxide, tri (2,
A heat stabilizer, a reinforcing agent, a flame retardant, an antistatic agent and the like such as 3 dibromopropyl) phosphate, a fatty acid sulfonate, a higher alcohol sulfate and the like are blended and used. When a phenol resin is selected as the thermosetting resin, alkylamine, ammonia, sodium hydroxide, barium hydroxide, and the like are preferable as a catalyst required for producing the resin. In particular, alkylamine and ammonia have larger molecular weights than the other two, and have low hydration properties in terms of molecular structure, so that the water resistance after bonding is remarkably improved. At this time, the phenol resin is preferably dissolved or dispersed in water or alcohol so as to have a solid content of 20 to 80% from the viewpoint of easy impregnation. When an alcohol is used, MeOH is preferred because of its low boiling point and easy drying. If the solid content is less than 20%, it becomes difficult to impregnate the required amount, and if it is more than 80%, the impregnation becomes difficult due to an increase in viscosity. The resin to be impregnated into the glass fiber contains a fiber ratio (weight ratio) of 50% or more, preferably 100 to 100%.
300%. When impregnating the sheet material 2,
Solids content 50-500 g / m ² , preferably 150-35
It is preferable to set it to 0 g / m ² . 50g /
If it is less than m ^2, it is difficult to exhibit sufficient scratch resistance, and 500 g /
unless m ² or less consuming cure time.

After the glass fiber is impregnated with the resin solution as described above, it is dried under a certain condition, and hot-pressed to cure the thermosetting resin to obtain the back sheet 2. The back sheet 2 is attached to the back surface of the decorative material 1 with an adhesive as appropriate.
The tensile strength of the back sheet 2 is preferably 10 kgf or more in order to sufficiently develop scratch resistance. If it is less than 10 kgf, sufficient scratch resistance is not exhibited.

The laminated finish shown in FIG. 2 is obtained by laminating a back sheet 2 between a decorative material 1 and a base material 3. The actual processings 4 and 5 are performed around the base material 3 and are suitable for use as flooring. As the base material 3, a plywood, a wood fiber board, a particle board, a wafer board or the like, or a composite board thereof is preferably used.

Using a plywood having a thickness of 12 mm as the base material 3,
A veneer veneer having a thickness of 0.3 mm is used as the decorative material 1, a nonwoven fabric having a basis weight of 100 g / m ² made of glass fiber having a fiber length of 3 mm, and a phenol resin of 50% by weight of glass fiber is used. Example 1 was applied to the flooring shown in FIG. 2 in which the phenolic resin of Example 1 was used, and the fiber length was 12 mm and the other conditions were completely the same as Example 1. The phenol resin of Example 2 was set as Example 3, the phenol resin of Example 2 having 150% was set as Example 4, and the phenol resin of Example 4 having 300% of phenol resin was set as Example 5. A comparative example was obtained by bonding a 0.3 mm thick oak veneer directly to the base material 4 as the decorative material 1 with a urea-melamine adhesive.

The above Examples 1 to 5 and Comparative Example are compared with J
A test for measuring the scratch value of a pencil based on IS K-5400 and a test for measuring the diameter of a concave hole after dropping a steel ball having a diameter of 6.35 mm and a weight of 150 g 50 times from a height of 3 cm (falling ball test JIS A -1408). The results were as shown in Table 1 below. In the pencil scratch value, the evaluation “H” is ×, “2H” is Δ, “3”
“H” was evaluated as ○, and “4H or more” was evaluated as ◎. In addition, in the falling ball test, the diameter of the pit is 5 mm or more.
Less than Δ, 3 mm to less than 4 mm, ○; less than 3 mm, ◎.

[0012]

[Table 1]

[0013]

As described above, according to the present invention, there is a hard back sheet on the back surface of the decorative material, which makes it difficult for the surface to be scratched, especially for dents. Further, the back sheet is made by impregnating a thermosetting resin into glass fiber and hardening it. The back sheet is strong and hard, and is light, so that the laminated finish can be easily handled. Further, the back sheet can be easily formed in a three-dimensional shape, and a three-dimensional object such as an interior material of an automobile can be easily formed. Furthermore, those having a base material can be used as they are for flooring and the like.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a laminated finishing material.

FIG. 2 is a sectional view of a laminated finish using a base material.

[Explanation of symbols]

 1 Cosmetic material 2 Back sheet 3 Base material

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI E04C 2/24 E04C 2/24 Q E04F 13/08 E04F 13/08 A

Claims (5)

[Claims] 1. A laminated finishing material wherein a back sheet obtained by impregnating glass fiber with a thermosetting resin and curing is bonded to the back surface of the decorative material. 2. A laminated finishing material wherein a back sheet cured by impregnating glass fiber with a thermosetting resin is sandwiched between a substrate and a decorative material. 3. The thermosetting resin is a phenol resin,
One of epoxy resin, urethane resin and urea resin
The laminated finishing material according to claim 1 or 2, which is a mixture of two or more. 4. The laminate according to claim 1, wherein the decorative material is any one of a veneer, paper, and a vinyl chloride sheet, or a laminate of two or more of them. Finishing material. 5. The laminated finishing material according to claim 1, wherein the glass fiber is a nonwoven fabric.