JP3638853B2 - Laminated decorative sheet - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a laminated decorative sheet and is used for surface decoration of building materials such as furniture members, fittings, and building materials, and light electrical products such as refrigerators and television cabinets.
[0002]
[Prior art]
Laminated decorative sheet, as an object to be bonded, wood, plywood, laminated wood or particle board, a plate-like material of woody materials such as hardboard, are used by bonding with an adhesive, laminating product further Assemble boxes and cabinets with V-cut processing. Also as the bonding material, with a complex shape, i.e. subjected to cutting wood or from wood or plastic into polygonal body and surfaces pillars of sectional curved shape of the profile extrusion molded polygonal section, the There are also products that are lapped to fit the shape.
The laminated decorative sheet of the part that has been subjected to the V-cut process and the part to which the wrapping material has an acute angle part may be cracked, whitened, or cut. As a material that does not cause a phenomenon, a laminated decorative sheet in which an opaque vinyl chloride film as a base material sheet is provided with a printing ink layer with a printing ink and a transparent vinyl chloride film is thermally laminated as a protective sheet has been used.
By stacking, in order to protect the printing ink layer provided on a substrate sheet with a protective sheet, out strength by increasing the thickness at the same time, vinyl chloride film have a slight elongation, V-cut processing, Lapping processing suitability can be imparted. Furthermore, the vinyl chloride film has been used because it has various advantages such as printability, bonding property, and embossability.
Paper also formed by bonding a vinyl chloride film reinforced sheet or reinforced sheet was subjected to resin finishing in, but that where the paper substrate strength is inadequate (tear easily) have been substantially used There wasn't.
[0003]
[Problems to be solved by the invention]
However, vinyl chloride films cause environmental problems by generating chlorine gas and plasticizer odor during incineration, and vinyl chloride films have poor weather resistance (specially improved and modified vinyl chloride films are available) However, there is a problem that the stain resistance due to oozing out of the plasticizer is poor.
Advantages particular V-cut processing of the above-described vinyl chloride film, although alternate materials are required to have a lapping processing suitability, the present invention is to provide a laminated decorative sheet as its substitute material.
[0004]
[Means for Solving the Problems]
The present invention is a laminated decorative sheet in which a protective sheet is laminated on the surface of a printing ink layer of a base sheet provided with a printing ink layer on the entire surface, wherein the base sheet is an opaque polyolefin resin film, and the protective sheet is A laminated decorative sheet for V-cut processing or wrapping processing, which is a transparent acrylic resin film.
[0005]
The present invention is also a laminated decorative sheet in which a protective sheet is laminated on the surface of a thermal adhesive anchor material layer of a base sheet provided with a thermal adhesive anchor material layer on the entire surface of the printing ink layer and the printing ink layer, The base sheet is an opaque polyolefin-based resin film, and the protective sheet is a transparent acrylic resin film, and is a laminated decorative sheet for V-cut processing or lapping processing .
[0006]
The present invention is also a laminated decorative sheet characterized by embossing the acrylic resin film of the laminated decorative sheet.
[0007]
The present invention also provides the laminated decorative sheet, wherein the embossed surface of the acrylic resin film is subjected to a wiping process.
[0008]
Since the present invention has taken the above-mentioned means, the above problems have been solved, and a laminated decorative sheet having the advantages of a laminated vinyl chloride film has been obtained.
[0009]
The present invention will be described in more detail.
Poly olefin resin film as a substrate sheet, there is moderate growth and strength, and the price is cheap material. More importantly, there are no chlorine groups in the molecule. Also not included plasticizers in the film.
To use an opaque poly-olefin resin film is to have a hiding property, the print pattern having a printing ink layer on the poly-olefin resin film is to unaffected color of the bonding material.
To opaque poly olefin resin films, the addition of coloring pigments, fillers (carbonates Improvement of a Saline, carbonate Maguneshumu, silica). There are also features that help printability and adhesion. Opaque is usually white, but may not be white depending on the printed pattern. Even by foaming a poly olefin resin film, (seen in the synthetic paper portion) which can be opaque.
Polyolefin based resin film obtained by a film of poly olefin resin. Poly olefin resin, a homopolymer of ethylene as the ethylene, ethylene - (meth) acrylic acid ester copolymer, ethylene - propylene copolymer, ethylene - Yes ethylene resins such as butene-1 copolymer as the propylene-based homopolymer of propylene, propylene - ethylene copolymer, a propylene - propylene resins such as butene-1 copolymer.
[0010]
A transparent film is used as the acrylic resin film as the protective sheet , and is for protecting the printing ink layer. The weather resistance, cold resistance, heat resistance, and contamination resistance are superior compared to the vinyl chloride resin film. More importantly, there are no chlorine groups in the molecule. The embossing was good.
The acrylic resin used as the acrylic resin film is composed of acrylic monomers (including methacrylic acid) and other monomers such as acrylic resins obtained by polymerizing acrylic acid esters, acrylamides, and acrylonitriles, and styrene. And an acrylic copolymer resin.
[0011]
The surface of the polyolefin resin film and acrylic resin film may be activated by corona treatment, ozone treatment, etc. in order to improve the adhesion with printing ink, paint, and adhesive. .
[0012]
Printing ink layer is provided on the entire surface on an opaque poly olefin resin film. As the printing ink, an ink that is inked using a urethane-based resin, an acrylic resin, or the like is preferable.
[0013]
It was laminated heat-sealing laminate by applying heat and a printing ink layer of poly-olefin resin film provided with a printing ink layer acrylic resin film on both films. For this purpose, the printing ink itself needs to have thermal adhesiveness with the acrylic resin film, and among these inks, the urethane resin ink is good.
[0014]
When the printing ink layer is partially provided instead of the entire surface, it is necessary to provide a thermal adhesive anchor material layer.
Thermoadhesive anchor material is for the poly-olefin resin film or poly olefin resin film on the printing ink layer and the acrylic resin film is thermally bonded and has a heat-adhesive at 100 ° C. to 230 ° C. It is a paint or printing ink such as urethane resin or acrylic resin, and a synthetic resin containing no chlorine atom in the molecule is preferable.
The heat-adhesive anchor material layer can be provided simultaneously with the printing ink layer in the same printer.
[0015]
In order to further improve the design, it is preferable to emboss (uneven) the acrylic resin film surface. Embossing is performed simultaneously with the application of heat to the acrylic resin film.
Furthermore, ink can be filled in the recess of the emboss (wiping process), and a transparent paint can be applied or printed on the entire surface.
[0016]
The laminated decorative sheet is bonded to a material to be bonded using an adhesive and is bonded by a bonding machine or a lapping machine, and if necessary, is subjected to V-cut processing.
[0017]
【Example】
The present invention will be described in more detail with reference to the drawings.
[0018]
<Example 1>
As in FIG. 1, the substrate sheet 11, as an opaque polyolefin resin film, it was used Rikenbinirukogyo thickness 100μm is colored pigmented film made of polypropylene resin Co., Ltd. to "# 041".
The printing ink layer 12 was provided by printing a wood grain pattern on the entire surface using a urethane resin ink “Lamistor” manufactured by Toyo Ink Manufacturing Co., Ltd., using a gravure printing machine.
The protective sheet 14 was a transparent acrylic resin film, and “Acryprene HBS-001” manufactured by Mitsubishi Rayon Co., Ltd. having a thickness of 50 μm was used.
The surface of the printing ink layer 12 and the acrylic resin film were heat-laminated with a heat laminating embossing machine under conditions of a laminating temperature of 110 ° C. to 120 ° C. , a laminating time of 40 seconds, and a laminating pressure of 2 kg / cm. At the same time, an emboss 15 having a conduit pattern was applied to the acrylic resin film surface .
The obtained embossed laminated decorative sheet 10 was excellent in design feeling due to the combination of the printed wood grain pattern and the embossed 15 of the conduit pattern.
[0019]
As shown in FIG. 3, the laminated decorative sheet 10 is bonded using a plate-like 6 mm-thick plywood 21 and a water-based urethane resin adhesive to form a laminated decorative sheet-attached laminated board 20, and the laminated decorative sheet 10 is left. The right triangle portion 22 of the plywood 20 was removed, and the hatched portions 23 and 23 'were bonded together with the water-based urethane resin adhesive 24 to make a V-cut processed product 30 as shown in FIG.
[0020]
No whitening or cracking phenomenon was observed in the portion 31 bent at a right angle of the V-cut processed product 30.
Moreover, since the laminated decorative sheet 10 does not use a film containing a chlorine group in the molecule, chlorine gas is not generated during combustion.
[0021]
<Example 2>
As in Figure 2, the substrate sheet 11, as an opaque polyolefin resin film, it was used Oji-Yuka Synthetic Paper thickness 80μm consisting of polypropylene resin Co., Ltd. to "Yupo KPK-80".
The printing ink layer 12 was provided by printing a wood grain pattern on the entire surface using a urethane resin ink “Lamistor” manufactured by Toyo Ink Manufacturing Co., Ltd., using a gravure printing machine. Toyo Ink prepared in gravure version of plate depth 70μm as thermal bonding anchor material layer 13 Co. urethane anchor material to "V-80" in the thickness 5μm in the same printing machine, and printing following the grain pattern.
As the protective sheet 14 , “Acryprene HBS-001” manufactured by Mitsubishi Rayon Co., Ltd. having a thickness of 50 μm , which is a transparent acrylic resin film, was used.
The surface of the heat-adhesive anchor material layer 13 and the acrylic resin film were heat-laminated with a heat laminating embossing machine under conditions of a laminating temperature of 150 ° C. , a laminating time of 15 seconds, and a laminating pressure of 2 kg / cm. At the same time, an emboss 15 having a conduit pattern was applied to the acrylic resin film surface . Next, apply black urethane resin ink on the embossed 15 surface, squeeze the entire surface with a doctor-like object, fill the recess in the embossed 15 and apply acrylic urethane resin transparent paint to the entire surface. did.
The resulting embossed laminated decorative sheet 10 was excellent in design feeling due to the combination of the printed wood grain pattern and the black conduit pattern emboss 15 .
Moreover, the printing ink layer 12 and the acrylic resin film on the base sheet 11 were firmly bonded by the heat-adhesive anchor material layer 13 , and the adhesive strength was 3.5 kg / 25 mm or more.
[0022]
The laminated decorative sheet 10 is laminated using a 6 mm-thick plywood 21 and a water-based urethane resin adhesive 24 to make a laminated decorative sheet-attached laminated board 20, and the laminated decorative sheet 10 is left as shown in FIG. 4 is removed, and the hatched portions 23 and 23 'are bonded together with the water-based urethane resin adhesive 24 to make a V-cut processed product 30 as shown in FIG.
[0023]
No whitening or cracking phenomenon was observed in the portion 31 bent at a right angle of the V-cut processed product 30.
Further, the laminated decorative sheet 10 does not generate chlorine gas during combustion.
[0024]
【The invention's effect】
It laminated decorative sheet of the present invention, since the above-described structure, poly olefin resin film is a base sheet, heat-adhesive anchor material layer, because it does not contain chlorine atoms in the resin to the acrylic resin film co During the incineration process, there is no chlorine gas and there is no plasticizer odor.
Since the base sheet is a polyolefin resin film, it has moderate softness (flexibility) and is inexpensive, and the laminated decorative sheet laminated with an acrylic resin film is suitable for secondary processing (V-cut processing). , Lapping process) was good.
Moreover, since the surface was embossed or colored with embossing, an excellent design feeling was obtained by combining with the printed pattern.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a laminated decorative sheet in Example 1 of the present invention.
FIG. 2 is a cross-sectional view of a laminated decorative sheet in Example 2 of the present invention.
FIG. 3 is a cross-sectional view of a laminated decorative sheet-bonded plywood obtained by bonding a laminated decorative sheet and a plywood according to an embodiment of the present invention.
4 is a cross-sectional view of a V-cut processed product 30 obtained by performing V-cut processing on the laminated decorative sheet-bonded plywood of FIG. 3. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Laminated decorative sheet 11 ... Base material sheet 12 ... Printing ink layer 13 ... Thermal adhesive anchor material layer 14 ... Protective sheet 15 ... Embossed 20 ... Laminated decorative sheet pasting plywood 21 ... Plywood 22 ... Right triangle part 23, 23 '... Shaded portion 24 ... Adhesive 30 ... V-cut processed product 31 ... Bent at right angle

Claims (4)

A laminated decorative sheet in which a protective sheet is laminated on a printing ink layer surface of a base sheet provided with a printing ink layer on the entire surface, wherein the base sheet is an opaque polyolefin resin film, and the protective sheet is a transparent acrylic type A laminated decorative sheet for V-cut processing or lapping, which is a resin film. A laminated decorative sheet in which a protective sheet is laminated on a thermal adhesive anchor material layer surface of a base sheet in which a thermal adhesive anchor layer is provided on the entire surface of the printing ink layer, and the base sheet is opaque A laminated decorative sheet for V-cut processing or wrapping processing, wherein the protective sheet is a transparent acrylic resin film. The laminated decorative sheet according to claim 1 or 2, wherein embossing is performed on the acrylic resin film of the laminated decorative sheet. 4. The laminated decorative sheet according to claim 3, wherein the embossed surface of the acrylic resin film is subjected to wiping.

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