JPH0455851B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method of press-molding a long patterned material with a paste resin interposed therebetween for use in wall materials, floor materials, or various decorative items.

(Prior Art) Conventionally, there is a method of using an embossing roll as a means for forming an uneven pattern on a synthetic resin film or paper, and a method of forming an uneven pattern on a synthetic resin sheet using a printing ink containing a foaming inhibitor.

(Problems to be Solved by the Invention) However, according to the former method, there are problems in that the depth of the uneven pattern on the embossing roll is shallow and the uneven pattern easily disappears, and it is not possible to produce a sheet with a porcelain-like gloss. Moreover, according to the latter method, foamed portions are formed on the surface, resulting in weak strength, and there are also problems in that a product with a porcelain-like luster cannot be produced.

In the present invention, a glossy uneven pattern surface is formed using a transparent synthetic resin sheet, and at the same time, an opaque paste resin is filled inside the uneven pattern surface to precisely form an uneven pattern with a three-dimensional effect to a desired depth. Pressure molding of a long patterned area that can be molded and can be molded into a long patterned area with a porcelain-like luster by positioning a transparent synthetic resin sheet on the surface of the uneven patterned area with a three-dimensional effect. It seeks to provide law.

(Means for Solving the Problems) In order to achieve the above object, the present invention has an opaque paste resin on one side of a long base material made of a flexible and transparent synthetic resin sheet. After applying the pasty resin, a long substrate coated with the paste-like resin is placed between a heated metal cylinder and a press roll that are freely rotatably arranged opposite each other, and an intaglio pattern is formed on one side of the cylinder and the press roll. The material is passed through the synthetic resin sheet so that it faces one of the cylinder on which the intaglio pattern is formed and the pressure roll, and the surface coated with the paste resin faces the other of the cylinder and the pressure roll. A synthetic resin sheet is formed along the intaglio pattern to form an uneven pattern surface, and at the same time, the inside of the uneven pattern surface is filled with the paste resin to form the uneven pattern, and the back side of the uneven pattern is covered with the paste resin. The gist of this is that it is molded into a flat shape.

(Example) First, an example of the apparatus employed in the press molding method of the present invention will be explained based on FIG.

Reference numeral 1 denotes a storage tank for pasty resin, which will be described later. Inside the storage tank 1, a pasty resin 2 such as an opaque paste resin such as vinyl chloride resin, silicone resin, or epoxy resin, or an ultraviolet curable resin is stored. .

Further, a freely swingable doctor plate 3 is provided on the upper side of the storage tank 1. Reference numeral 4 denotes a freely rotatable coating roll that partially protrudes into the storage tank 1, and the coating roll 4 has a large number of recesses formed on its surface, and a large amount of paste-like resin 2 is applied through the recesses as described below. The image is transferred onto a flexible, elongated substrate.

Further, a freely rotatable receiving roll 5 made of rubber, for example, is provided opposite to the application roll 4.

Reference numerals 6 and 7 designate freely rotatable guide rolls disposed above the receiving roll 5 at intervals in the lateral direction. Furthermore, a rotatable metal cylinder 8 is provided below the guide roll 7. The surface of the metal cylinder 8 is mirror-finished if necessary, and a heating burner 9 and a fountain nozzle 10 are disposed below the heating burner 9 at intervals.

If necessary, a rubber roll 11 is provided diagonally above the metal cylinder 8 and rotates in substantially contact with the cylinder 8. Reference numeral 12 denotes a rubber press roll which is rotatably provided at the bottom of the freely rotatable guide roll 7 and in almost contact with the top of the metal cylinder 8, and the press roll 12 has an indentation. It forms a pattern.

Further, reference numeral 13 denotes a peeling roll rotatably provided at the lower side of the metal cylinder 8. Further, as will become clear from later description, a heating cylinder 14 is used when a backing material is attached to the back side of a long patterned fabric (product) having an uneven pattern.
At the top of the heating cylinder 14, there is a rotatable push roll 15 made of rubber, for example, which rotates in approximately contact with the heating cylinder 14.
.

Reference numeral 16 denotes a take-out roll that is freely rotatable at the lower side of the heating cylinder 14. Further, reference numeral 17 denotes a guide roll rotatably provided between the peeling roll 13 and the push roll 15.

Further, 18 is a winding shaft provided near the take-out roll 16. Further, reference numeral 19 denotes a backing material disposed near the heating cylinder 14 and horizontally suspended so as to be rewindable.

Further, reference numeral 20 denotes a long base material made of a flexible and transparent synthetic resin sheet, which is horizontally suspended in the vicinity of the storage tank 1 so as to be unwound in order to convey the paste-like resin.

Next, the press molding method of the present invention using the apparatus configured as described above will be explained.

First, a long base material 20 made of a flexible and transparent synthetic resin sheet is passed between the receiving roll 5 and the coating roll 4, and a solution of, for example, calcium carbonate stored in the storage tank 1 is passed between the receiving roll 5 and the coating roll 4. An opaque paste-like resin 2 containing an opaque material such as the above is applied onto one side of the elongated base material 20 via a coating roll 4. Excess paste-like resin 2 adhering to the coating roll 4 during the coating is scraped off with a doctor plate 3. Furthermore, since the receiving roll 5 is provided opposite the coating roll 4 during the coating, uniform coating can be achieved.

Then, the elongated base material 20 coated with the paste resin 2 is transferred to the position of the press roll 12 via the guide rolls 6 and 7. At this position, the paste resin 2 is directly applied to the mirror-finished metal cylinder 8.
The elongated base material 20 enters into the uneven pattern engraved on the press roll 12 through the paste resin 2, and an uneven pattern surface is formed by the base material 20. A concavo-convex pattern is formed by the resin 2, and the back surface of the concave-convex pattern is formed into a glossy flat shape by the metal cylinder 8.

In other words, the elongated base material 20 forms an uneven pattern surface, and the paste resin 2 is filled into the concave portions of the intaglio pattern of the press roll 12 that has entered the base material 20. , it is possible to form an uneven pattern with a desired height (depth). Further, since the metal cylinder 8 is heated by the heating burner 9, the paste-like resin 2 is heated by the heating burner 9.
When filled, it gels to the extent that it has no fluidity. Then, a long base material 20 with an uneven pattern formed thereon by rotation of a metal cylinder 8 and a paste resin 2
When moving to the peeling roll 13 side, the paste resin 2 is further heated by the heating burner 9 and completely gelled, and then transferred to the fountain nozzle 1.
The product is cooled at 0 and peeled from the metal cylinder 8 by a peeling roll 13 to become a product, which is then wound (not shown).

Further, when the backing material 19 is attached to the back surface of the product after the peeling, the elongated patterned material 20a on which the peeled uneven pattern is formed is placed on the guide roll 17.
is supplied between the heating cylinder 14 and the push roll 15 through the push roll 15, while a suitable backing material 19 such as paper, cloth, hard transparent vinyl chloride resin sheet, or soft synthetic resin film is heated via the push roll 15. After the backing material 19 and the elongated patterned material 20a having an uneven pattern are integrated with each other by the heat of the heating cylinder 14, the backing material 19 is peeled off from the heating cylinder 14 by the take-out roll 16 and the backing material is pasted. The combined product is then wound up on the winding shaft 18.

Also, when obtaining a product using the ultraviolet curable paste resin, a flexible and transparent synthetic resin sheet is used as the elongated base material 20, and the heating burner 9 is By eliminating the use of the metal cylinder 8 and instead arranging an ultraviolet light generating device outside the metal cylinder 8, a product can be obtained.

In addition, when trying to obtain a product by using, for example, epoxy resin, urethane resin, etc., which has adhesive properties with metal as the paste-like resin 2, the rubber roll 11
While pressing and supplying the thermoplastic synthetic resin film to the metal cylinder 8 through the press, an uneven pattern is formed with the paste resin 2 on the thermoplastic synthetic resin film in the same manner as described above, thereby forming a long patterned area. can be obtained.

As shown in FIG. 2, the product obtained as described above can be precisely molded with a three-dimensional uneven pattern at the desired depth according to the intaglio pattern engraved on the press roll 12. Since the surface of the uneven pattern with a three-dimensional effect is formed from a synthetic resin sheet with gloss, the gloss of this synthetic resin sheet and the opaque paste-like resin 2 exposed through the synthetic resin sheet are different from each other. By the combination of
A long patterned area 20a with a porcelain-like luster can be formed.

Also, on the back side of the uneven pattern, the paste resin is heated and comes into full contact with the mirror-finished metal cylinder 8, and is gelled and formed into a glossy flat shape. Both sides of 20a exhibit specular gloss.

Next, a specific example will be given and explained.

Thickness 0.15mm as flexible long base material 20
A colorless and transparent vinyl chloride resin film was used, and as a paste resin, 100 parts of 121 (manufactured by Nippon Zeon) (vinyl chloride resin) and (same parts by weight) dioctyl phthalate (manufactured by Daihachi Chemical) (plasticizer) were used. 60 parts, MA-10 (manufactured by Akishima Chemical) (stabilizer) 2
Part, calcium carbonate (manufactured by Bihoku Funka) (filler) 100
The peripheral speed of the metal cylinder 8 was 3 m/min, the temperature of the metal cylinder 8 was 130° C. near the heating burner 9, and the pressure roll 12 and The metal cylinder 8 was rotated at the above speed between the peeling roll 13 and the temperature of the cylinder 8 to 180° C. to obtain a product having a cross-sectional shape as shown in FIG. 2 and an uneven pattern exhibiting a porcelain-like luster.

Furthermore, in the above embodiments, an intaglio pattern was formed on the press roll 12. However, the intaglio pattern may be formed on either the press roll 12 or the metal cylinder 8. The intaglio pattern may be formed on the metal cylinder 8 instead of the roll 12. In this case, the elongated base material 20 is pressed against the cylinder 8 while facing the cylinder 8 having the intaglio pattern. It is caused to pass between the roll 12 and the roll 12.

(Effects of the Invention) As described above, in the press molding method of the present invention, after applying an opaque paste-like resin to one side of a long substrate made of a flexible and transparent synthetic resin sheet, When passing the elongated base material between a metal cylinder on which an intaglio pattern is formed on one side and a press roll, the synthetic resin sheet is faced to one of the cylinder or the press roll on which an intaglio pattern is formed. By passing the synthetic resin sheet through the sheet, a glossy uneven pattern surface can be formed, and at the same time, the paste resin is filled inside the uneven pattern surface to precisely form an uneven pattern with a three-dimensional effect to a desired depth. As a result, the combination of the luster of the synthetic resin sheet located on the surface of the uneven pattern with a three-dimensional effect and the opaque paste-like resin exposed through the synthetic resin sheet creates a porcelain-like appearance. It is possible to form a shiny long patterned material.

[Brief explanation of the drawing]

FIG. 1 is a simplified explanatory diagram of an apparatus employed in the press molding method of the present invention, and FIG. 2 is a partial sectional view of a product produced by the apparatus of FIG. 1. 2... Paste resin, 8... Metal cylinder, 12... Press roll, 19... Backing material, 20
...Flexible long base material.

Claims (1)

[Claims] 1 After coating an opaque paste resin on one side of a long base material made of a flexible and transparent synthetic resin sheet, a heated metal cylinder and a press roll are placed opposite each other so as to rotate freely. The elongated base material coated with the paste-like resin is pressed between the cylinder on which the intaglio pattern is formed on one side of the cylinder and the pressure roll, and the cylinder on which the synthetic resin sheet has the intaglio pattern formed thereon. At the same time, the synthetic resin sheet is passed along the intaglio pattern to form an uneven pattern surface by passing the paste resin sheet through the cylinder and the press roll, facing one side facing the roller and facing the other side of the cylinder and the press roll. A paste-like resin is interposed, characterized in that the inside of the surface of the uneven pattern is filled with the paste-like resin to form the uneven pattern, and the back side of the uneven pattern is molded into a flat shape with the paste-like resin. Pressure molding method for long patterned fabrics.