JPH0655495B2 - Juraku wall covering - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a falling wall covering material in which an aggregate is adhered to the surface of a backing paper.

[Conventional technology]

In order to draw an uneven pattern on the surface of a decorative sheet with this kind of aggregate adhered, either emboss rolls are applied to the aggregate adhered surface that has been spray-adhered over the entire surface, or bones are applied along the imprinting pattern of the adhesive. The method of spraying and bonding the agent is adopted (Japanese Patent Publication No. 62-40467,
Japanese Examined Japanese Patent Publication No. 63-52579, Japanese Examined Patent Publication No. 1-18879, Japanese Official Examined Publication No. 62-18440).

[Problems to be solved by the invention]

In the method by the embossing roll, since there are aggregates on both the surface of the convex portion and the valley bottom of the concave portion, it is difficult to draw a concavo-convex pattern with a sharp and three-dimensional appearance of the convex portion and the concave portion, in particular,
If the aggregate is a hard inorganic material obtained by crushing ceramics or bricks, the embossing roll will be damaged even if the base sheet is made thick, so it is almost impossible to draw the uneven pattern.

In addition, the method of printing an adhesive requires an engraving roll with deep recesses to firmly bond the aggregate to the base sheet, but such engraving rolls with deep recesses are expensive. Not only that, but the amount of adhesive applied cannot be adjusted. Therefore, in aggregates with a large particle size, only a part of the surface will be slightly point-adhered to the adhesive coating, so it will fall off. In an aggregate that is easy to absorb, particularly when the adhesive is easily absorbed, such as a crushed porous foam, even if the provisional adhesive is applied thickly, the adhesive is absorbed inside the aggregate and a strong adhesive effect is not exhibited.

Then, even if it is attempted to add a foaming agent to the adhesive to raise the adhesion part of the aggregate, the aggregate becomes a sticky, unfoamed adhesive thin film immediately after printing. The adhesive does not penetrate deeply into the thick coating that foams and solidifies to adhere, and the higher the expansion ratio, the weaker the coating of the adhesive becomes and the easier it is to break. It is useless to compound the with an adhesive.

Moreover, since it is difficult to remove the adhesive from the peripheral surface of the engraving roll having fine irregularities, a great deal of labor is required for cleaning after the use.

[Object of the Invention]

Therefore, an object of the present invention is to easily and efficiently obtain a falling wall covering material having an uneven pattern in which the aggregate does not easily fall off and which has excellent durability.

A second object of the present invention is to obtain a non-combustible fallen wall covering material in which a hard inorganic aggregate is partially adhered to form an uneven pattern.

Another object of the present invention is to obtain a falling wall covering material which is flexible and flexible, and which is easy to bend and easy to construct.

[Structure of Invention]

The Juraku wall covering 16 according to the present invention is a backing paper for adhering the aggregate 15.
11 has irregularities 12 and 13 on the back surface that show irregularity traces 18, and on the surface, a convexoconcave pattern is drawn by the convex portion 20 to which the aggregate 15 is adhered and the concave portion 19 to which the aggregate 15 is not adhered. It is characterized by that.

Embossing can be done by passing backing paper between the metal embossing roll and the backup rubber roll to make the unevenness 12 and 13 with unevenness traces 18 appearing on the back side, but by rubbing wrinkles or creasing finely inserted like crepe paper The irregularities 12 and 13 may be formed (Fig. 3).

In order to draw the uneven pattern of the convex portion 20 of the aggregate 15 adhered to the backing paper 11 with the irregularities 12 and 13 and the concave portion 19 of the aggregate 15 not adhered, like a solid printing roll The backing paper 11 is passed through a roll with a plain peripheral surface coated with the adhesive 14 (Fig. 4), and a large amount of aggregate 15 is sprinkled and laminated on the coated surface of the adhesive 14 transferred from the roll. (FIG. 5) Then, the backing paper 11 may be turned over and the excess aggregate 15 'may be shaken off. By doing so, the aggregate 15 is adhered to the convex portions 12 of the backing paper 11 and almost not to the concave portions. No (FIG. 6), therefore, the uneven pattern corresponding to the unevenness 12 and 13 provided on the backing paper 11 is drawn.

The reason is that when the backing paper 11 is passed through a roll whose peripheral surface is plain, the adhesive 14 is transferred to the surface of the convex portion 12 that strongly adheres to the peripheral surface of the roll, but the adhesive 13 hardly touches or the concave portion 13 that touches lightly. Since it is not or hardly transferred to the valley bottom, the aggregate 15 scattered on the convex portion 12 is adhered, but the aggregate 15 'scattered on the concave portion 13 is almost removed and removed. is there.

That is, depending on the size of the particle diameter of the aggregate 15, if the coating film of the adhesive 14 transferred to the backing paper 11 is too thin, the initial adhesive strength is weak, and the aggregate 15 dispersed on it is weak. Most of them fall off when the backing paper 11 is turned over (Figs. 7 and 1).

In this way, the degree of adhesion of the aggregate 15 is determined by the thickness of the coating film of the adhesive 14, and even if the adhesive is transferred to the entire surface of the backing paper 11, the convex portion 12 and the concave portion 13 are coated with the adhesive 14. Due to the difference in the film thickness, the aggregate 15 is closely adhered to the convex portion 12 and the concave portion 13
Then, it becomes sparse, and a certain pattern is also drawn depending on the adhesion density of the aggregate 15.

Therefore, the step between the convex portion 12 and the concave portion 13 (depth of the concave portion 13)
It is not always necessary to adjust the thickness of the coating film on the peripheral surface of the transfer roll very strictly in order to make the thickness too large or to transfer the adhesive 14 only to the convex portions 12.

In other words, in the present invention, the unevenness difference on the surface of the backing paper 11 is not so important to the left, and rather, the convex portion 12 is more important than the surface of the concave portion 13.
It is important to closely adhere the aggregate 15 to the surface of the.

Therefore, for example, when using crepe paper with fine kneading or folding wrinkles as the backing paper 11, spread the tension so that the wrinkles are not completely eliminated, and the wrinkle unevenness does not increase the depth. It suffices if they are passed through a reverse roll coater or the like after being uniformly aligned, and in that case, in order to make the height of wrinkles uneven and the depth thereof substantially even, they can be passed through a press roll lightly and then through a reverse roll coater.

When the backing paper 11 is passed through an embossing roll to form the irregularities 12 and 13, a water-repellent agent or paint is carried on the convex portion of the embossing roll, and the water-repellent agent is applied to the bottom of the concave portion 13 formed at the same time as the embossing. A color difference or the like can be provided between the convex portion 12 and the concave portion 13 by transferring a paint or the like, and as the water repellent agent, an antifouling agent such as a silicone resin or a fluororesin, a wax or the like is used.

As shown in FIGS. 7 and 8, the aggregate may be a mixture of several kinds of aggregates 15A and 15B having different colors.

Various kinds of adhesives such as water-soluble sizing agents such as carboxymethyl cellulose and emulsion / latex compounds are used.

As the aggregate 15, finely crushed fibers, foams, ceramics, woods, etc. are used, but particularly hard inorganic powders such as ceramics, pottery, porcelain, bricks, marble, and cold water stones are used. In some cases, recesses 13 are drawn so that a striped pattern or a grid pattern that continues in a straight line vertically and horizontally like the joints of the constructed tile is drawn.
You should put.

The fallen wall covering material 16 thus obtained can be passed through a press roll to eliminate irregularities due to the aggregate 15 protruding on the surface of the convex portion to finish it as a smooth surface 17 (Fig. 2), and also an antistatic agent. It is also possible to finish by overcoating with an antifouling agent or other resin composition.

In particular, when the aggregate 15 is a crushed foam of a thermoplastic resin such as vinyl chloride or ethylene / vinyl acetate, when it is passed through a press roll in a heated state, the aggregate 15 protruding from the convex surface 12 is pressed flat. Crushed and expanded, stone-grained Juraku interior material 16
Can be obtained (Fig. 8).

〔The invention's effect〕

(1) In the present invention, the surface of the backing paper 11 is divided into convex portions 12 and concave portions 13, and the aggregate 17 is bonded to the convex portions 12,
Further, the adhesive 14 is not printed by an engraving roll or the like, but is transferred from a reverse roll coater or doctor roll having a plain surface. Therefore, the coating amount (coating thickness) of the adhesive 11 is the backing paper 11 It is possible to appropriately adjust the relationship with respect to the types of the adhesive 14, the aggregate 15, and the adhesiveness.

(2) When the aggregate 15 that easily absorbs the adhesive like the crushed foam (sponge) is sprayed, the adhesive coating 14 should be thick enough and cut into the coating 14. Let's aggregate
Since the 15 can be firmly adhered to each other, it is possible to obtain the fall wall covering material 16 in which the aggregate 15 is hard to drop off, has abrasion resistance, and is highly durable.

(3) Further, when the Juraku interior material 16 in which an uneven pattern is drawn depending on the presence or absence of the aggregate 15 of the convex portion 12 and the concave portion 13 is passed through a press roll, the portion with the aggregate 15 is the raised convex portion 12. The aggregate 15 can be easily pushed into the backing paper 11, whereby the aggregate 17 can be finished to be a fall interior material 18 that is more resistant to falling and has excellent wear resistance and durability.

(4) Further, the amount of the adhesive 14 applied (coating thickness) can be appropriately adjusted depending on the type of the backing paper 11, the adhesive 14, and the aggregate 15, the adhesiveness, etc. It is possible to promptly deal with switching of the backing paper 11 and the adhesive 14, which are 16 materials, or the aggregate 15, and the application device of the adhesive 14 is a plain reverse roll coater or a peripheral surface. Since it is a doctor roll, it does not take time to clean it after use.

(5) Further, since the uneven pattern is not formed by the embossing roll, it can be drawn on the thin backing paper 11 by the hard inorganic aggregate 15 such as ceramic or brick, and the backing paper 11 or the adhesive 14 or It is also possible to obtain a colorful interior material 18 in which the valley bottoms of the recesses 13 have different colors according to the color of the aggregate 15.

(6) In particular, the recess 13 is formed in a striped pattern or a grid pattern like tile joints to form a hard inorganic aggregate such as ceramic or brick.
In the case where 15 are dispersed and adhered, it is possible to insert a cutter along the recessed portion 13 which is straight and does not have those aggregates 15 and can be cut, and even if the inorganic aggregate 15 that is hard and difficult to cut is scattered and adhered It is also possible to cut and cut the edges and butt the cutting edges together for adhesive bonding.

(7) At the same time, since the inorganic aggregate 15 obtained by crushing ceramics or bricks is a non-combustible substance, the present invention is extremely advantageous in obtaining a non-combustible interior material.

(8) Furthermore, if the hard inorganic aggregate 15 obtained by crushing ceramics or bricks is sprayed and adhered, the entire interior material becomes hard, but
In the present invention, the irregularities 12 and 13 on the surface of the backing paper 11 are deeply formed to the extent that the irregularity traces 18 are exposed on the back surface. It can be bent and neatly installed so that no cracks will be generated on the surface even at the outer and inner corners of the wall.

Therefore, as is apparent, according to the present invention, the aggregate 15 is firmly attached so that it does not easily come off, and a colorful pattern is drawn depending on the presence or absence of the aggregate 15, which is convenient for construction performed by bending or stacking, and is nonflammable. It is possible to easily and efficiently produce the Juraku interior material 16 having excellent durability.

[Brief description of drawings]

FIG. 1 is a sectional side view of a falling wall covering according to the present invention, and FIG. 2 is a sectional side view of the falling wall covering shown in FIG. Is a cross-sectional side view of the backing paper according to the present invention, FIG. 4 is a cross-sectional side view of the backing paper shown in FIG. 3 in a state where the adhesive has been transferred, and FIG. 5 is a backing paper shown in FIG. FIG. 6 is a cross-sectional side view of the aggregate of FIG. 3 in a laminated state, FIG. 6 is a cross-sectional side view of the falling wall covering material according to the present invention in which the aggregate is adhered to the backing paper illustrated in FIG. 3, and FIG. Fig. 5 is a partially enlarged cross-sectional side view of the state in which the aggregate is laminated on the backing paper shown in Fig. 5, and Fig. 8 is a cross-sectional side view in the state in which it is finished by passing through the press roll of the falling wall material shown in Fig. 7. It is a figure. 11 …… Backing paper, 12 …… Convex part, 13 …… Concave part, 14 …… Adhesive, 15 …… Aggregate, 16 …… Jumbo wall covering, 17 …… Smooth surface, 18 …… Empty marks, 19 ...... Concave part, 20 ... convex part.

Claims (1)

[Claims] 1. A Juraku wall covering 16 in which an aggregate 15 is adhered to the surface of a backing paper 11, wherein the backing paper 11 has irregularities 12 and 13 on the back surface of which uneven traces 18 appear, and the surface has bones. A hollow wall covering material characterized in that a concavo-convex pattern is drawn by a convex portion (20) of the material (15) and a concave portion (19) of the aggregate (15) which is not adhered.