JPH03251452A - Decorative material - Google Patents

Abstract

PURPOSE:To form unevenness aligned with a pattern while leaving the parts other than the pattern in an expanded state by providing a foamed sheet and a gravure printing layer on a base material and destructing foamed cells by the solvent in the ink of a printing layer to form recessed parts. CONSTITUTION:An acrylic ester emulsion is foamed by mechanical foaming and the obtained gelled foamed sheet is laminated to backing paper for wallpaper reduced in water stretch properties being a base material and ink using a ketone type solvent is used to be print a grain pattern on the surface of the foamed sheet. The parts other than the grain pattern remain in an expanded state and, as a result, the parts of the grain pattern become a recessed state to obtain a decorative material aligned with the grain pattern. As the base material, a nonwoven fabric can be used other than the backing paper. When aqueous solution of a crosslinkable acrylic resin is applied to the entire surface provided with the grain pattern, surface resistance is enhanced.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a decorative material that provides a difference in gloss by providing a concave portion on the surface that matches the pattern, thereby creating a visual three-dimensional effect and a sense of volume. .

<Conventional technology> Conventionally, there is a technology to form irregularities on the surface of a base material by mechanically foaming an acrylic emulsion-based foamable resin, but it has problems with surface properties (smoothness, texture, etc.) and physical properties (surface strength, etc.). Due to this problem, it was not possible to create a product that could be used as an interior material.

In addition, a pattern is formed on the surface of the foam sheet by printing using a paint whose main component is a ketone solvent, and after drying,
JP-A No. 56-72026 discloses a material in which a concavo-convex pattern is formed by foaming to bulge out areas other than the pattern.

<Problems to be Solved by the Invention> However, the above-mentioned Japanese Patent Application Laid-Open No. 56-72026 reduces the decomposition gas of azodicarbonamide through the combination of a specific amine, azodicarbonamide, and a ketone paint during foaming, thereby creating uneven surfaces. Since the pattern is to be applied, there is a problem in that foaming is not allowed after printing, and the foaming residue causes variations in the color of the pattern.

<Means for Solving the Problems> The present invention has been devised to solve the above problems, and includes providing a foam sheet on a base material, providing a gravure printing layer on the foam sheet, and printing the printing layer on the foam sheet. This decorative material is provided with four parts corresponding to the pattern of the printed layer by destroying the foam cells in the foam sheet and forming recesses using the solvent in the ink.

<Function> The present invention has the following structure, in which the foam cells are destroyed by the solvent in the ink printed on the surface of the foam sheet, and the areas other than the pattern remain in a bulged state, resulting in unevenness that is consistent with the pattern. is formed.

<Example> An acrylic ester-based emulsion having the following composition was foamed by mechanical foaming (preferably 3 times or more), and the foamed sort with a thickness of 0.2 to 2.0 m/m was gelled as a base material. , laminated on 1-0.2 m/m thick wallpaper backing paper with low water shrinkage, and printed a wood grain pattern on the surface of the foam sheet using ink using a ketone solvent. remained in a swollen state, and as a result, the woodgrain pattern became depressed, resulting in a decorative material that matched the woodgrain pattern.

In addition to the above-mentioned backing paper, a nonwoven fabric can also be used as the base material. Furthermore, if a cross-linked water-soluble acrylic resin is applied to the entire surface of the wood grain pattern, the durability of the surface will be improved.

1 Tatami Y - Example - Acrylic ester 100 parts filler 120 parts crosslinking agent 3 parts anti-blocking 1L agent 4 parts water repellent 3 parts blowing agent 3 parts foam stabilizer 3 parts thickener 0.5 parts dispersant 1.5 Part gel agent 10 parts <Effects of the invention> Since the present invention has the above structure, it has the following excellent practical effects.

(a) Since the unevenness is formed by destroying the foamed cells with the solvent in the ink that forms the pattern, it is possible to express different gradations by changing the following conditions.

(1) Amount of ink to be printed (the larger the amount, the deeper the indentation) (2) Drying speed of the ink (the slower the indentation, the deeper the indentation) (3) Type of ink (ketone-based makes the indentation deeper) (4) Expansion ratio of the foam sheet (The larger the size, the deeper the dent.) (5) Crosslinking properties of the foam sheet (The weaker the crosslink, the deeper the dent.) ) Condensation prevention effect (2) Flame retardancy (contains a large amount of inorganic material, such as aluminum hydroxide) (3) Light resistance (4) Stain resistance (contains silicone) (5) Sound absorption (completely foam cells) (C) Since the printing layer is provided on an already foamed sheet, the color of the pattern is stable, and delicate depressions can be expressed, resulting in excellent gradation expression.

Claims (1)

[Claims] By providing a foam sheet on a base material, providing a gravure printing layer on the foam sheet, and destroying the foam cells in the foam sheet with a solvent in the ink of the printing layer to form recesses. A decorative material with recesses that correspond to the pattern on the printed layer.