JP2944737B2 - Cloth coated metal plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a pre-laminated type cross-coated metal sheet, particularly excellent in weather resistance, corrosion resistance, workability, sound absorption and the like, and is used for construction of factories and offices. The present invention relates to a cloth-coated metal plate suitable for use as a partition member.

Here, the term “cloth” includes not only woven fabric but also nonwoven fabric.

[Prior art] As architectural partitions, wooden partitions with photographs and pictures, metal partitions with steel plates coated with paint, etc., have been widely and widely used, including old-fashioned paper screens. Was. Among these partitions, the paper partition and the wooden partition are not only vulnerable to impacts but also flammable.On the other hand, the metal partitions represented by colored steel plates have the sound absorption property in addition to the cold characteristic of metal. There was a problem that lacked. Therefore, various attempts have been made to solve these problems.
For example, planting fibers such as nylon pile on a steel plate via a resin binder (Japanese Patent Publication No. 62-27864),
It has been proposed to configure a steel sheet partitioning material by attaching a cloth to a previously processed steel sheet.

[Problems to be Solved by the Invention] According to each of the above-mentioned prior arts, a metal plate partition having no bad image of metal, a soft feeling, a high design, and excellent sound absorbing properties, despite being a metal plate. A plate is obtained. However, in a partition material obtained by planting fibers on a steel sheet, since the thermosetting resin is used as a main adhesive film forming component, the workability of the partition material is poor, and a complicated processing method cannot be adopted. In addition, there is a problem that productivity is inferior due to the complicated hair transplanting process.

On the other hand, in the case of a partition material made by applying a cloth to a processed steel plate with a coating-type adhesive, an adhesive such as a solvent-based, emulsion-based, or rubber-based adhesive is used. It is difficult to control the amount of the agent, and the adhesive will protrude from the cloth and must be removed, which is inferior in productivity and requires the use of a solvent. There is a problem that is not desirable.

The present invention aims to advantageously solve such problems of the prior art, has high productivity, and has excellent workability, and can sufficiently withstand complicated construction methods, and An object of the present invention is to provide a pre-laminated type cross-coated metal sheet which does not cause any problem on safety and health of a manufacturing worker.

[Means for solving the problem]

The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems of the prior art, and as a result, have found that the dry film weight per unit area (g / m ² ) of the solvent-based adhesive has been reduced. After various experiments, it was determined that the intended purpose could be advantageously achieved by controlling the maximum single yarn diameter of the cloth to be pre-laminated to 10 to 80 times.
The present invention has been completed.

That is, according to the present invention, the amount of the adhesive that brings about the adhesion between the cloth cloth and the metal plate is determined by determining the dry film weight per unit area (g / m ² ) of the single yarn diameter of the pre-laminated cloth.
It is controlled so as to be in the range represented by 80 times, preferably in the range of 30 to 60 times.

Here, the solvent-based adhesive may be oily or water-based, and may be any one that is generally used for bonding cloth, for example, polyethylene,
Polypropylene, polyvinyl chloride, polyester, vinylidene polychloride, nylon, polyvinyl alcohol,
Polystyrene, polyvinyl acetate, vinyl chloride / vinyl acetate copolymer, fluororesin, polycarbonate, acrylic resin, ethyl cellulose, cellulose acetate, cellulose nitrate, thermoplastic resin such as polyoxymethylene, epoxy resin, urea resin, melamine resin, phenol A thermosetting resin such as a resin, a natural rubber, a styrene / butadiene copolymer, a butyl rubber, an isoprene rubber, a butadiene rubber, a rubber such as thiochol, chloroprene rubber, and a nitrile rubber, or a mixture of two or more thereof are used. Among them, a thermoplastic polyester resin is particularly advantageous in terms of adhesive strength with a cloth.

In applying the adhesive, any conventionally known method such as a roll coater method, a curtain flow coater method or a spray coating method can be used, and the solvent is removed at a temperature of 80 to 400 ° C. , For about 0.5 to 3 minutes.

The cloth may be any cloth as long as it has good wettability with an adhesive and good adhesiveness. For example, a single cloth of nylon, polyester, acrylic, rayon, silk, wool, cotton, or two or more kinds of cloth And the like. Among them, polyester and acrylic fibers are advantageous in terms of durability.

As the base steel sheet, not only a general cold-rolled steel sheet but also a sheet subjected to a plating treatment, a chemical conversion treatment, and a primer treatment can be suitably used.

Next, when attaching the cloth to the metal plate, a solvent-type adhesive is applied to the metal plate in advance, and after removing the solvent contained in the adhesive by heating, the cloth is thermally bonded using a roll. Any of the conventionally known methods can be used, such as a method in which a cloth is immediately adhered to a metal plate coated with a solvent-type adhesive, and a method in which a solvent is removed by heating. The treatment is preferably performed by applying pressure at a temperature of 60 to 380 ° C for about 0.5 to 3 minutes.

By the way, when the cloth is coarse and the metallic luster is conspicuous when the cloth is adhered to a steel plate, it is preferable to use a mixture of a commonly used dye, coloring pigment, extender pigment and the like in the adhesive.

[Action]

In the cloth-coated metal sheet of the present invention, by controlling the amount of the solvent-type adhesive to be applied, the adhesive strength between the cloth and the metal sheet can be sufficiently increased, and the workability, weather resistance, corrosion resistance and appearance are greatly increased. Can be improved.

According to the present invention, the reason why the adhesion is improved by controlling the amount of the solvent-based adhesive to be applied as the adhesive has not yet been clearly elucidated, but the solvent-type dispersed between the cloth and the metal plate has not yet been elucidated. It is considered that the adhesive is uniformly mixed into the cloth layer without exuding from the surface of the cloth, thereby increasing the adhesive strength.

Here, when the dry film weight per unit area (g / m ² ) of the solvent-based adhesive by the peeling method is less than 10 times the single yarn diameter of the cloth, the contact area between the adhesive and the cloth becomes small. Therefore, if the adhesive strength of the cloth to the metal plate is insufficient, and if it exceeds 80 times the single yarn diameter of the cloth, the adhesive will protrude from the cloth and impair the product aesthetics, and the adhesive yield will decrease. Invite.

[Example 1] A polyester-based adhesive (softening point) as an adhesive was applied to the surface of a 0.35 µm-thick hot-dip galvanized steel sheet (Z12) that had been treated with zinc phosphate (1.0 g / m ² ) using a roll coater. 115
℃, solid content concentration 40% by weight) so that the dry film adhesion amount becomes 30 g / m ² which is equivalent to 30 times the constant multiplication of 1.0 mm of the single yarn diameter of the acrylic cloth to be prelaminated. Then, after heating until the maximum attained plate temperature reached 180 ° C., the surface was immediately covered with a cloth and bonded together under pressure by a roll for 45 seconds.

Table 1 shows the results of examining the coating characteristics of the thus obtained pre-laminated cloth-coated metal sheet.

As is apparent from Table 1, the pre-laminated cloth-coated metal plate of the present invention using an adhesive in which the amount of the solvent-based adhesive to be applied is adjusted to 30 times the single yarn diameter of the cloth has the following characteristics. Excellent adhesion, weather resistance and corrosion resistance,
In addition, it has been confirmed that they are also excellent in workability and sound absorption.

[Examples 2 to 8] The adhesion amount of the solvent-based adhesive was 10,2 with respect to the single yarn diameter of the cloth.
A pre-laminated cross-coated metal plate was obtained in the same manner as in Example 1, except that an adhesive adjusted to a value corresponding to each constant multiplication of 0,40 to 80 times was used.

Table 1 shows the results. According to this table, if the amount of the solvent-based adhesive adhered is within the appropriate range according to the present invention with respect to the single yarn diameter of the cloth, a cloth-coated metal plate having excellent coating characteristics can be obtained.

[Examples 9 to 11] A pre-laminated type cross-coated metal plate was obtained in the same manner as in Example 1 except that the type of the solvent-based adhesive was changed. Table 1 shows the evaluation results.

According to this, it can be seen that the same excellent coating performance as in Example 1 can be obtained even when the type of the adhesive is changed.

[Examples 12 to 13] A pre-laminated cloth coated metal plate was obtained in the same manner as in Example 1 except that the type of the cloth forming system was changed to polyester, cotton, and acrylic, respectively. As shown in Table 1, their coating properties showed excellent results in any of the properties irrespective of the type of yarn.

[Examples 14 to 16] A pre-laminated cloth coated metal plate was obtained in the same manner as in Example 1 except that the single yarn diameter of the cloth was changed to 0.3, 0.5 and 0.8 mm. The results are as shown in Table 1. According to this, even if the single yarn diameter of the cloth is changed, as long as the adhesion amount of the adhesive is within the appropriate range according to the present invention, the cloth having excellent coating properties can be obtained. It can be seen that a coated metal plate is obtained.

Example 17 A pre-lamination type cross-coated metal plate was obtained in the same manner as in Example 1 except that a colored adhesive was used. First
According to the coating properties shown in the table, it is understood that a pre-laminated type cross-coated metal sheet having excellent coating properties can be obtained even when a colored adhesive is used.

[Comparative Example 1] The procedure was performed except that the amount of the polyester solvent-based adhesive applied was 5 g / m ² , which is equivalent to a constant multiplication of 5 times the single yarn diameter of the cloth of 1.0 mm. In the same manner as in Example 1, a pre-laminated type cross-coated metal plate was obtained. Table 1 shows the results of the coating evaluation. According to the table, it can be seen that good coating performance cannot be obtained when the amount of the adhesive attached is less than the proper range of the present invention.

[Comparative Example 2 to Comparative Example 4] The adhesion amount of the polyester-based solvent-based adhesive was calculated as the adhesion amount (90 to 150 g / m) corresponding to a constant multiplication of 90 to 150 times the single yarn diameter of the cloth cloth of 1.0 mm. ^A pre-laminated type cross-coated metal plate was obtained in the same manner as in Example 1 except that the procedure was changed to ² ). Table 1 shows the results of the coating evaluation. According to this, it is understood that the amount of the adhesive adhering agent may not be too large within the proper range of the present invention.

[Effects of the Invention] Thus, according to the present invention, compared to the prior art,
It is possible to obtain a pre-laminated type cross-coated metal plate having not only excellent workability, weather resistance, corrosion resistance and sound absorption, but also excellent adhesive strength, and thus enables complicated forming.

In addition, since the pre-laminating cloth coating is performed before forming the metal plate, productivity is dramatically improved as compared with the conventional laminating method after forming, and safety and hygiene are improved. Workers can be effectively protected from organic solvents that may cause health care problems.

Claims (1)

(57) [Claims] 1. A pre-laminated cloth-coated metal plate obtained by heat-bonding a cloth to a metal plate via a solvent-type adhesive, wherein the solvent-type adhesive has a dry film weight per unit area (g / g). m ² ) a cloth-coated metal sheet having a value within the range of 10 to 80 times the single yarn diameter of the cloth.