JPH11278547A - Laminated paper for ceramic siding materials and laminating method for ceramic siding materials - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide an interleaf paper having no trace of interleaving paper for a ceramic siding material, and a method of laminating a ceramic siding material using the same. A center line average roughness Ra defined by JIS B0601 is 0.2 μm or more, and a maximum height Rmax is 4
A siding material for ceramic siding material, characterized by having a surface of at least μm, and a method for laminating a ceramic siding material, characterized in that such a siding material for ceramic siding material is used between layers of the ceramic siding material. .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper for ceramic siding and a method for laminating ceramic siding used as a side wall of a building such as a house, a building or a tunnel.

[0002]

2. Description of the Related Art Ceramic siding materials are usually produced in factories and transported to construction sites for use. For convenience of transportation, the stacked products are packed in bulk and transported by truck, rail, or ship.

[0003] In addition, ceramic siding materials are usually provided with a concavo-convex, embossed or engraved pattern on the surface in order to provide design. It is painted for durability and design.

[0004] For this reason, when stacked for transportation, mutual contact occurs at protruding portions on the surface, and the coating film may be damaged. For the purpose of preventing paint film damage during transportation,
The interleaving paper is inserted between ceramic siding materials.If the coating film is hard, regardless of the roughness of the interleaving paper surface,
If the paper has cushioning properties, mutual damage can be sufficiently prevented.

However, recently, for the purpose of enhancing the design, plastic beads, which are much larger than inorganic and organic pigments and fillers conventionally used for matting and coloring for coatings, are used as matting agents and coloring. It is increasingly used as an agent. Further, the hardness of the coating film may not always be sufficiently high at the time of stacking and packaging, due to additives for meeting various required characteristics such as water permeability resistance to the coating film and certain kinds of members used.
In such a case, simply using the cushioning slip paper cannot sufficiently prevent the damage, and the surface shape of the slip paper may be transferred to the surface of the coating film at the contact portion (referred to as a slip of the slip paper). .

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an interleaf paper which does not form an interleaving paper on the ceramic siding material and a method for laminating the ceramic siding material using the same.

[0007]

As a result of intensive studies by the present inventors, the above object has been industrially advantageously achieved by the present invention having the following constitution.

[1] The center line average roughness Ra defined by JIS B0601 is 0.2 μm or more, and the maximum height Rma
An interleaf paper for ceramics-based siding materials, characterized in that x has at least a surface of 4 μm or more.

[2] At least one side is JIS B060
The center line average roughness Ra defined by 1 is 0.2 μm or more;
The interleaf paper for ceramic siding materials according to [1], wherein the maximum height Rmax is occupied by 40% or more of the surface having a size of 4 µm or more.

[3] The interleaf paper for ceramic siding materials according to the above [1] or [2], comprising a resin film.

[4] The center line average roughness Ra defined by JIS B0601 is 0.2 μm or more, and the maximum height Rma
A method for laminating ceramic siding materials, characterized in that interleaving paper having at least a surface with x of 4 μm or more is used between layers of ceramic siding materials.

[5] At least one side is JIS B060
The center line average roughness Ra defined by 1 is 0.2 μm or more;
The method for laminating ceramic siding materials according to the above [4], wherein an interleaf paper having a maximum height Rmax occupying 40% or more on a surface of 4 μm or more is used between layers of the ceramic siding material.

The most important feature of the present invention is that the center line average roughness Ra defined by JIS B0601 is 0.2 μm or more and the maximum height Rma
By making x a specific surface of 4 μm or more,
The point is to provide an excellent slip sheet for ceramic siding materials that does not produce slip marks.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The slip sheet used in the present invention is JI
The center line average roughness Ra defined by SB0601 is 0.2
μm or more, preferably 0.3 μm or more, and the maximum height R
It has a surface roughness of max 4 μm or more, preferably 5 μm or more. Ra is less than 0.2 μm and Rma
When x is less than 4 μm, a slip of the slip sheet is likely to be formed. Ra and R
The upper limit of max is not particularly limited, but Ra is 50
μm or less and Rmax of 100 μm or less tend to have better appearance balance with the surrounding coating film roughness.

It is preferable that the surface roughness is uniformly present on the surface of the slip sheet, but the effect of the present invention can be obtained even if it is present in a spotted pattern. In that case, the surface roughness portion defined above is at least 40%, preferably at least 50%. If it is less than 40%, there is a tendency that the trace of the slip sheet cannot be sufficiently eliminated.

The surface roughness depends on the method of laminating the ceramic siding material. However, in the laminating method of bringing the surfaces of the ceramic siding material into contact with each other, both sides of the slip sheet, the front and rear surfaces of the ceramic siding material are used. In the laminating method of contacting the sheets, the effect of the present invention cannot be sufficiently obtained unless it is provided at least on one side of the slip sheet.

The materials constituting the slip sheet of the present invention include polyethylene, polypropylene, vinyl chloride, nylon,
A resin film made of polyester, polyvinyl alcohol, ethylene vinyl acetate copolymer, triacetate, or the like, a laminate film thereof, a laminate with cloth, paper, or the like is preferably used.

Although not limited to the present invention, the above-mentioned surface roughness may be determined by blending inorganic or organic particles at the time of forming an interleaf paper, transferring the surface shape of a metal roll, or spraying physical sand by sand or the like. It can be made by a method such as processing and chemical etching.

The interleaf of the present invention is generally suitable for a paper having a thickness of 30 μm or more in view of strength and cushioning property. The upper limit of the thickness is not particularly limited, but it is realistic to determine the upper limit from the viewpoint of economy.

In the present invention, the ceramic siding material is not particularly limited, but is relatively lightweight and durable, mainly composed of cement, and composed of silica sand, mica, asbestos, pulp, synthetic fiber, wood chips and the like. Plate, rod, column, etc. These ceramic siding materials usually have the front side (surface) after construction.
Are provided with a concave-convex shape, an embossed shape, or a line-shaped pattern for adding a design.

Further, the above ceramic siding materials include:
Usually, an undercoat as a sealing agent and an overcoat mainly for imparting design properties have a total thickness of 30 to 400 μm.
About applied. Examples of the resin used for the paint include acryl, alkyd, acrylic styrene, epoxy, urethane, vinyl, and silicone resin.

These resins are copolymerized, polymer blended, crosslinked, and furthermore, in order to prevent blocking properties.
The glass transition temperature is generally adjusted to 20 ° C or higher by various methods such as adding a plasticizer or a film forming agent. However, depending on the sheet temperature after coating and the hardness of the coating film immediately after coating, the ceramic siding material is laminated. When this is done, the situation is such that the slip of paper is likely to stick.

In order to change the color and luster of the coating film, silica, alumina white, barium sulfate, titanium dioxide, cadmium yellow, porcelain, carbon black, white squirt balloon, etc. Inorganic and organic pigments such as quinacridone red and phthalocyanine blue, and fillers may be usually added. Further, for the same purpose, colored or uncolored resin beads having a diameter of about 5 to 300 μm, usually 20 to 200 μm may be added in an amount of about 20 wt% or less to the coating film.

The interleaf paper for ceramic siding according to the present invention is particularly effective in the case of a coating film whose glossiness at 60 degrees measured by JISZ8741 is 20% or less, preferably 15% or less. When the glossiness exceeds 20%, the slip of the slip sheet is hardly formed, and the effect of the present invention tends to be hardly obtained.

In the above-mentioned resin bead-added system, since the particle diameter is generally larger than that of inorganic or organic pigments and fillers, the head of the beads coming out of the coating film surface also becomes large. The present invention is suitably applied because the paper tends to be easily retracted, and particularly the paper slip tends to be formed.

In the present invention, when two or more ceramic siding materials are laminated, the slip of the interleaf paper of the present invention is sandwiched between the surfaces of the ceramic siding materials or between the layers where the front and back surfaces are in contact with each other. Sticking can be prevented.

[0027]

(Example 1) Cement 80 wt%, silica sand 15
wt%, mica 3wt%, polyvinyl alcohol fiber 2w
t%, thickness 2cm, length 4m, width 50cm,
100 g / m ² of a solvent-based acrylic resin paint (“V-Seran Sealer”, Dainippon Paint Co., Ltd.) is applied to the surface of a ceramic siding material in which a square checkerboard pattern having a step of 2 mm and a side of 10 cm is alternately applied. After applying, wind temperature 130
At 100 ° C., and “V-Seran Sealer” was applied thereon at 100 g / m ² and dried under the same conditions to obtain an undercoat plate.

On this undercoat plate, a two-pack type acrylic urethane resin paint base material (082, Rock Paint Co., Ltd.) containing 4 wt% of a solid content of red, black and yellow colored plastic beads having a diameter of 20 to 100 μm as a top coat paint. ),
A composition prepared in a ratio of main agent: hardener: thinner = 7: 1: 2 was applied at 100 g / m ² and dried at 130 ° C. to obtain a topcoat. The total thickness of the coating film is about 90 μm, 6
The 0 degree glossiness was 8% (measured with a gloss meter GMX-202 manufactured by Murakami Color Research Co., Ltd.). The glass transition temperature of the coating film measured immediately after production was 45 ° C.
It was confirmed by DSC (fingerprint scanning calorimetry) analysis that the transition started gradually from around ° C.

Assuming that the front side of the top coating plate is A and the back side is B, 20 sheets of BA-AB-BA-AB are laminated from below, and a polyethylene-made thickness is placed between A and A. 80 μm, Ra 0.4-0.6 μm on both sides, Rmax5
An interleaf paper having a roughness of 10 to 10 μm (measured with a surface roughness measuring instrument SE-3300 manufactured by Kosaka Laboratory Co., Ltd.) was inserted. At this time, the plate temperature was 30 ° C.

After 24 hours, the laminated state was released, and the surface of each layer was observed, but no trace of interleaving paper was found. (Example 2) On the surface of an undercoating plate obtained by treating in the same manner as in Example 1, an emulsion acrylic resin paint audite of Nippon Paint Co., Ltd. was used as a topcoat paint, and the main agent: water was 9.5: 0.5. And applied at 100 g / m ² , and then dried at 130 ° C. air temperature.

The total thickness of the coating film is about 90 μm, and the glossiness at 60 degrees is 5% (a gloss meter GMX- manufactured by Murakami Color Research Co., Ltd.).
202). The glass transition temperature measured immediately after the production was 41 ° C., but it was confirmed that the transition started gradually from around 25 ° C.

Twenty sheets are laminated from the bottom so that BA-BA-BA-BA is formed, and a polyethylene
80 μm thick, single-sided smooth (Ra 0.15 μm, Rmax
3.5 μm), Ra 1.5 μm on one side, Rmax 40 μ
m roughness part (Kosaka Laboratory Co., Ltd. surface roughness measuring instrument SE)
-3300) is 60% (40% is Ra0.15μ).
m, Rmax 2 μm) was inserted such that the rough side was in contact with A. At this time, the plate temperature was 30 ° C.

Twenty-four hours later, the laminated state was released, and the surface of each layer was observed. (Embodiment 3) An emulsion acrylic resin paint "V-Seran" of Dainippon Paint Co., Ltd. was used as a top coat on the surface of an undercoat plate obtained by treating in the same manner as in Example 1, and the main component was water.
After mixing at a ratio of 5: 0.5, plastic beads colored in red, black, and yellow having a diameter of 20 to 100 μm were added at 8 wt% based on the solid content, applied at 100 g / m ² , and then heated at 130 ° C. in air temperature. Dried.

The total thickness of the coating film is about 100 μm, and the glossiness at 60 ° is 4% (GMX manufactured by Murakami Color Research Co., Ltd.)
-202). Further, the glass transition temperature measured immediately after the production was 43 ° C., but it was confirmed that the transition started gradually from around 25 ° C.

From the bottom, 20 sheets are laminated so as to be BA-AB-BA-AB, and a polyethylene
Thickness 60μm, Ra0.5μm on both sides, Rmax10μ
m (Surface roughness measuring instrument SE-3 manufactured by Kosaka Laboratory Co., Ltd.)
(Measured at 300). At this time, the plate temperature was 30 ° C.

Twenty-four hours later, the laminated state was released, and the surface of each layer was observed. (Comparative Example 1) In Example 1, made of polyethylene, having a thickness of 80 μm, Ra 0.15 μm and Rmax 3 μm on both surfaces.
Surface roughness (Kosaka Laboratory Co., Ltd. surface roughness measuring instrument SE-33)
(Measured at 00). At this time, the plate temperature was 30 ° C.

Twenty-four hours later, the laminated state was released, and the surface of each layer was observed.

(Comparative Example 2) In Example 2, the thickness was 80 μm made of polyethylene, Ra 0.15 μm
A slip sheet having a roughness of max 10 μm (measured by a surface roughness measuring instrument SE-3300 manufactured by Kosaka Laboratory Co., Ltd.) was inserted. At this time, the plate temperature was 30 ° C.

Twenty-four hours later, the laminated state was released and the surface of each layer was observed. (Comparative Example 3) In Example 3, a surface roughness measuring device SE-330 made of polyethylene, having a thickness of 60 µm and Ra of 0.2 µm and Rmax of 3 µm on both surfaces (Kosaka Laboratory Co., Ltd.).
(Measured at 0). At this time, the plate temperature is 3
It was 0 ° C.

After 24 hours, the laminated state was released, and the surface of each layer was observed.

[0041]

According to the present invention, there is provided an excellent interleaving paper which does not form a trace of interleaving paper on a ceramic siding material, and a method for laminating a ceramic siding material using the same.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroshi Kusano 1795 -4, Tsutsui-shaped sand flow field, Matsumae-cho, Iyo-gun, Ehime Pref.

Claims (5)

[Claims] 1. A center line average roughness Ra defined by JIS B0601 is 0.2 μm or more and a maximum height Rmax is 4
characterized by having at least a surface of at least μm,
Ceramic paper for siding. 2. A method according to claim 1, wherein at least one surface is occupied by 40% or more of the surface having a center line average roughness Ra defined by JIS B0601 of 0.2 μm or more and a maximum height Rmax of 4 μm or more. The paper for ceramic siding according to claim 1. 3. A method comprising a resin film.
The paper for ceramic siding according to claim 1 or 2. 4. A center line average roughness Ra defined by JIS B0601 is 0.2 μm or more and a maximum height Rmax is 4
A method for laminating ceramic-based siding materials, characterized in that interleaving paper having at least a surface of at least μm is used between layers of ceramic-based siding materials. 5. An interleaf paper having at least one side having a center line average roughness Ra defined by JIS B0601 of 0.2 μm or more and a maximum height Rmax of 4 μm or more occupied 40% or more of ceramic paper siding. The method for laminating ceramic siding according to claim 4, wherein the method is used between layers of the material.