JPS5952565A - Preparation of decorative material - Google Patents

Abstract

PURPOSE:To efficiently form an excellent pattern to all materials to be printed each having a recessed and protruded curved surface or the like, by providing a jet control means for controlling ink jet according to preliminarily provided information to inject and apply ink to a synthetic resin layer. CONSTITUTION:A printing apparatus equipped with an ink jet control means reads, for example, information stored by a magnetic tape and an electromagnetic value 17 provided between an ink pressurizing tank 13 and an ink jet nozzle 15 is opened and closed according to the signal of said printing apparatus to inject ink onto the synthetic resin layer on a base material or a carrier sheet to form a pattern. A plurality of the ink jet nozzles 15 are provided to make the pattern fine and increase the number of colors. If printing is performed while a material to be printed in fixed and the gathering body of the ink jet nozzles is moved, work good in efficiency can be performed continuously.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing decorative materials made of synthetic resin.
In particular, the present invention relates to a method for producing decorative materials, particularly decorative materials suitable for architectural interior materials, by applying a new printing method.

Screen printing and graphic printing are generally used to manufacture the synthetic resin device 111 wings by printing. This screen printing method and gravure printing method include printing directly on the synthetic resin sheet to be printed (direct printing method), or printing on release paper, etc., and using this to print on the desired synthetic resin sheet. A transfer printing method for printing on a shaped body is known. Furthermore, by applying screen printing, 1. Instead of ink, synthetic resin paste sol, synthetic resin powder, etc. are used for printing to form a printing layer with a considerable thickness.

It is also known that the paste sol or powder is then heated and sintered to obtain a decorative material.

However, when using these methods, the screen plate, gravure roll, etc. must be replaced each time the pattern to be printed changes, making the work complicated and time-consuming, resulting in poor work efficiency. In addition, a version that matches the number of patterns,
Or you need to prepare a gravure roll. These items are expensive and also require space for storage.

In addition, in these methods, it is necessary to print with the plate or roll in close contact with the printing material, so it is impossible or inappropriate to print on curved surfaces or powder or granular materials, for example. Even when printing on general objects, printing defects are likely to occur due to poor adhesion to the printing material.

Furthermore, especially when using the transfer printing method, it is possible to print only on the surface of the printing material. There was a problem in that it was not possible to supply the ink with sufficient penetration, and it was not possible to obtain a decorative material with a so-called penetrating pattern.

The present invention solves the drawbacks of the conventional methods for producing decorative materials, and moreover, provides excellent decoration even when printed materials with uneven or curved surfaces, porous or powdery materials are subjected to abuse. The object of the present invention is to provide a method for manufacturing a decorative material.

That is, in the decorative manufacturing method of the present invention, a synthetic resin is formed on a carrier sheet, and then an ink injection nozzle is formed by an injection control means that controls the injection of ink according to information given in advance. 1 is a diagram showing an example of a printing apparatus used in the method of the present invention. The printing device is a microcomputer.
A device 11 for reading given information such as, an ink pressure tank 13, an ink injection nozzle 15, and a solenoid valve 17 provided between the ink pressure tank 13 and the ink injection nozzle 15. It is composed of
This printing device extracts information stored on, for example, a magnetic tape, and uses a magnetic valve (1η, magnetic valve) provided between an ink pressurizing tank 13 and an ink jetting nozzle /l/15 according to No. By opening and closing 17, ink is sprayed onto the synthetic resin layer to form a pattern.

Although three ink injection nozzles 15 are shown in FIG. 1, the number is not particularly limited. for example.

10 ink jet nozzles per square centimeter
In general, about 50 pieces can constitute an aggregate. Alternatively, a line head may be constructed in which ink jetting nozzles are arranged by the width of the printing medium. The closer the ink jet nozzles are provided, the more delicate the resulting pattern will be, and the greater the number of colors, which is preferable. Further, the diameter of this ink jetting nozzle can be arbitrarily determined; if the diameter is increased, a rough pattern will be obtained, and if the diameter is decreased, a delicate pattern will be obtained.

Printing may be carried out by fixing the synthetic resin M (printed material I) formed on the profiteering or carrier sheet and moving the ink jetting nozzle assembly (printing head), or by fixing the printing head. You can print continuously while moving the printing material, or you can fix both of them and print, and when printing is finished, move the next unprinted material under the print head. It is also possible to repeat the operation of guiding the user to the printer and performing new printing. Also,
It is also possible to print continuously by moving the printing material while moving the print head in a direction perpendicular to this direction of movement.

The means for controlling the application of printing ink onto the printing cylinder is shown in Fig. 1 by opening and closing a solenoid valve, but is not limited to this, and any control method can be adopted. . For example, as shown in FIG. 2, the ink 19 jetted from the ink jetting nozzle is blocked by the action of air spray or air jet from the air outlet 21 when the ink is applied to the printing material. A mechanism may also be used. In addition, 23 in the figure shows an ink collection receiver.

Although it is possible to use only one print head, it is possible to use multiple print heads to print synchronously (with matching patterns) to form complex and diverse patterns and obtain a decorative side that is desirable in design. I can do it. The number of print heads is not limited and may be determined as appropriate depending on the desired pattern. It is more convenient to supply ink of a fixed color to the ink jetting nozzles constituting each print head, since there is no need to replace the ink when changing the color pattern. In other words, each print head may have its nozzles configured to match a desired color pattern, but in this case, each time the color or pattern changes, the ink supplied to the nozzles 1 and It is necessary to replace the nozzles or change the arrangement of the nozzles. This operation is extremely ms and undesirable. Therefore, each printing head is supplied with one fixed color, and the ink supplied from the nozzles of other heads is It is preferable to form a pattern by combining them because it is easier to operate.

In this case, for example, the synthetic resin layer that is the printing material may be printed in three primary colors or an achromatic color (white.

By applying one color to one of #A), supplying one color of the remaining colors to each of the four print heads VC, and printing in appropriate combinations and overlapping at the same point on the printing target, A nearly infinite number of colors and patterns can be created.

In the present invention, the synthetic resin 1<14 is formed on a carrier sheet or a carrier sheet, and if a base material is used, a decorative side reinforced by the base material is obtained.

Specific examples of Motozuki include organic fiber non-woven fabrics made of natural woven or synthetic fibers, or composites thereof, glass fibers, non-woven fabrics such as asbestos fibers, or composites of inorganic fibers and shaped fibers. An example is a nonwoven fabric made of a solid material. A suitable releasable carrier may be used as the carrier sheet.

The synthetic resin layer is composed of a non-foaming synthetic resin composition, a foamable synthetic resin composition, a foamable and crosslinkable composition, etc.
The material can be in the form of a sheet, powder, paste sol, or the like. Further, the synthetic resin layer can be colored in advance to a desired color.

Then, as described in detail above, ink is sprayed and applied onto this synthetic resin layer to form a pattern. As with the above-mentioned synthetic resin, any conventionally known ink can be used as this ink.

Then, the printed synthetic resin layer is treated as necessary to obtain the decorative side. For example, if the synthetic resin layer is a non-foamable sheet-like material, it may be used as is, or it may be subsequently cut into a desired size. If the synthetic resin layer is made of granular material, heat sintering or pressing the granular material to integrate the granular material,
Obtain a decorative side in the form of a sheet. When the synthetic resin layer is a foamable synthetic resin, it is heated and foamed to form a sheet-like decorative side.

Furthermore, a transparent or translucent synthetic resin layer may be laminated on the ink Jtl printed on these synthetic trees)Iif)W. In this case, the surface of the decorative side obtained is wear resistant, the stock strength is improved by 44%, and a decorative side with a rich three-dimensional effect is obtained, which is preferable.

FIG. 3 is a schematic diagram showing an example of implementing the present invention. A base body 29 is guided onto the endless tape A/) 27 rotated by the drive roll 25 and the support roll 25', and a paste sol 31 is supplied onto the base body 29 and coated by a knife coater 33, and then passed through a heating furnace. 35
a.

35b to form a composite 4IJ side layer. In addition, when the paste sol is made of a foamable composition, it is heated to a temperature below the foaming temperature.

Then three print heads 37a, 37b and 37c
Printing is done by The print heads 37a, 37b and 37e have pressurized ink tanks 39a, 3, respectively.
From 9b and 39c, ink supply pulp 41m, 4
Ink is supplied via 1b and 41c.

Next, a transparent or semi-transparent synthetic resin 43 is coated with a knife coater 33' and heated in a heating furnace 45a.

45b, a transparent or semitransparent resin layer is laminated by heating and solidifying, and a decorative strip S is obtained. In addition, 44a,
44b indicates a cooling furnace.

FIG. 4 is a schematic diagram showing another embodiment of the present invention, in which four print heads 37a to 37d are provided. The granular material 49 is fed by the feeder 51 onto the slate 27 which acts as a carrier sheet, and then ink is jetted from the granular material by the print heads 37a to 37d. Printing is done.

After printing is completed, the heating furnaces 49a and 49b heat the sheets to the melting point temperature, and the hot presses sta and 51b unite them to obtain the decoration IS.

The print head may be provided in a size that covers the width of the synthetic resin layer that is to be printed (one autoangular length in the conveyance direction), and the print head may be provided with a size that covers the width of the synthetic resin layer that is to be printed. Printing may also be performed by moving this using. FIG. 5 is a schematic diagram equivalent to a partial top view of FIG. 3, in which the synthetic tree side layer 2 is moved in the X direction, while
The print head 37' moves on the pedestal 36 in the Y direction to perform printing. In this case as well, printing may be performed continuously while moving both the print head and the synthetic resin layer at the same time, or printing may be performed by scanning the print head while the synthetic resin layer is stopped, and then the next printing may be performed. The desired portion may be guided under the scanning range of the print head and the operation repeated.

Furthermore, by controlling the foaming of the foamable synthetic resin layer by the injected ink, the pattern and the foaming can be made to coincide with each other, thereby enhancing the design effect.

For example, a layer made of foamable synthetic resin is formed as the synthetic resin layer, and from at least a part of the injection nozzle,
Ink that promotes or suppresses foaming of the foamable synthetic resin layer is sprayed on one layer and four times to form a pattern, and then a transparent or translucent resin layer is formed on the foamable synthetic resin layer, or By foaming the foamable synthetic resin by heating it to a temperature higher than the foaming temperature of the foamable synthetic resin without forming it, a decorative material foamed in synchronization with the pattern can be obtained. If you drill along the three marks shown in Figure 3 when using the 1] head, you will see that
Each head (3?a.

37b and 37c), and one of them (for example, red) is used as an ink that promotes or suppresses foaming, and the other two colors are used as normal inks to create a pattern that appears in the pattern. For example, decorations with different bubble states (for example, the red part) can be obtained. Inks that promote or suppress foaming are
for example.

Adding foaming accelerator or inhibitor to ordinary ink 1-
It is easily obtained by filtering.

In addition, as a stud, synthetic resin Jn:j is used to attach or cross-link with heat, ink lines or eyes, or radiation.
B:'i consisting of II-1 resin composition, and from at least -1115 of the spraying nozzle, ink that promotes or suppresses the formation of a nail base or frame of the foamable synthetic resin) is sprayed, 6 Then, a transparent or translucent resin layer is formed on one can of the foamable synthetic resin, or without forming a transparent or translucent resin layer, the foamable synthetic soybean paste/r'i
After partially tightening the undercarriage or cross-linking/V, it is heated to a temperature higher than the foaming temperature to foam it, and then it is kneaded (the same HLI as urine).
It is possible to form an uneven pattern.

As described above, according to the method of the present invention, it is possible to perform printing without contacting the printing substrate, so that printing can be performed not only on smooth sheet-like materials but also on substrates having irregularities or curves. It is possible to print on a printed material made of powder or granules, and even on a porous printed Anll material.Also, printing unevenness caused by poor adhesion that is seen in conventional methods such as gravure printing and screen printing can be printed. It never occurs.

Moreover, when the printing target 4A is a synthetic resin layer of powder or porous material, the ink and stone to be supplied on the same point are cooled, and the ink is supplied and permeated from the front surface to the back surface of the entire layer. Therefore, it is possible to create a decoration with a so-called negative communication pattern.

Furthermore, the patterns and colors are determined by the information provided to the computer (
For example, by replacing the magnetic tape, etc., this can be done in an extremely short time, and work efficiency can be greatly improved. In addition, in the Takumai method, it is necessary to manufacture and store a plate or gravure roll that matches the pattern in one color, and the cost and storage space for this is expensive, but with the method of the present invention, , colors and patterns can be stored on magnetic tape, for example, and the costs and
The advantage of saving 1't space (at least 1 space) is huge.

Example 1 A nine-forming polyvinyl chloride paste sol and a clear vinyl chloride paste sol having the formulations shown in Table 1 were prepared for one hour, and decorated with the equipment shown in Section 31. child.

(Margin below) Table-1 As base paper, rlJl 840 m/'m, thickness 0.1
5 m/m asbestos paper was deposited on the belt, and a pre-foaming polyvinyl chloride paste sol knife coater was applied on top of the belt, and then it was placed in a heating furnace and heated to a temperature of 1 or higher than the foaming temperature. After heating and solidifying, the first print head (37
sieved under m).

Each of the three print heads is supplied with a different color. The size of the print head is 840 m/m horizontally (distance in the direction perpendicular to the flow direction of the synthetic resin layer), depending on the size of the intended decorative material.

The length (distance in the flow direction) is a o o m/m, and the number of nozzles is 15 per square centimeter.

After ink was ejected from each nozzle of the first print head according to information given in advance, the print head was moved to the bottom of the next print head, and this process was repeated to complete printing. Then, after coating the printed synthetic resin layer with a knife coater using transparent polyvinyl chloride paste sol,
It was heated in a heating furnace to harden it into a paste-sol and to increase the foamable polyvinyl chloride to %m, and after cooling, it was taken off from an endless belt to obtain a long decorative material S. This product has a east line pattern, a transparent wear-resistant layer is formed on the printed layer, the foam layer in the middle has cushioning properties, and the back side is reinforced with asbestos paper. It was suitable as a material.

Example 2 A polyvinyl chloride composition having the formulation shown in Table 2 was put into a Banbury mixer and mixed, then fed to a mixing roll and kneaded, cut into sheets, and after cooling, pelletized with a pelletizer. The pellets were then supplied to a crusher and crushed to obtain a powder having a maximum particle size of 2 m/m and an average particle size of 1 m/m. Then, a decorative SFF was manufactured using the powder and granular material shown in FIG. 4 using the apparatus shown in FIG.

Table 2 Powder and granules were added to a layer of 2m/2m using a magnetic feeder.
The sample was printed on a Teflon endless belt several times so as to have a size of m, and then printed in the same manner as in Example 1 using four printing heads. Next, heat the powder to the melting temperature in a heating furnace, then heat press it! The granules are made into one piece by ft4%2 and peeled off from the DEFRON endless belt to form a long wearing II wing (rl) with a Toto pattern.
J1840m/m, thickness approximately 2m/m) was obtained. The ink penetrates to the bottom of the powder layer, creating a so-called penetrating pattern, so the pattern does not disappear even when worn, and the same pattern appears on the fabric, making it suitable for flooring. Ta.

Example 3 A decorative fabric was produced in the same manner as in Example 1, except that a glass woven fine non-woven fabric impregnated with PvC paste was used as the fabric and four printing heads were used.

However, in this case, maleic acid was mixed as an inhibitor in the ink supplied to the first print head to form an ink of a type that suppresses foaming of the foamable synthetic resin. On the other hand, the other ink heads were supplied with Tongyu ink. The obtained decorative margin has a total thickness of 2. am/m, all rll 1840 tn
/m, and the part printed with the ink containing the foaming suppressant matched the pattern and formed four parts, which was preferable in terms of design.

In addition, there is a glass fiber layer on the back side, so it has good dimensional stability, the middle layer is foamed (but partially non-foamed), and has good cushioning properties, and the surface has a transparent 9I fat layer. Since it is formed of a polyurethane resin, it has good abrasion resistance and is suitable for use as an interior construction material.

Example 4 Four print heads (four colors) were used, and the print heads were mounted on a synthetic tree Jl while being supported by a pedestal as shown in Fig. 5.
A decorative pattern was produced in the same manner as in Example 1, except that printing was performed while moving at right angles to the flow direction of the solidified expandable polyvinyl chloride, which is the i'1 layer. Printing is performed by ejecting ink from the ink+y (ink+y) nozzle that is communicated to the computer based on information given in advance when the print head moves to the desired position on the printing target. The size is 30c+
++X100cWL, and the number of installed nozzles was 10 per square senna meter. In addition, a crosslinking agent (dithiol-8-) riazine) for crosslinking the foamable polyvinyl chloride paste was added to the ink supplied to one of the four print heads.

In the obtained decoration I, the parts printed with the crosslinking agent-containing ink become concave parts (non-foamed or low-foamed), and the other parts foam and become convex parts, forming unevenness that matches the pattern.
It was a good design. In addition, the table 1ni has a wear-resistant layer and a foam layer (partially non-foamed or low-foamed) in the middle, so it has poor cushioning properties, and the back side is reinforced with asbestos paper. Therefore, it was suitable as an interior material for construction.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an example of a printing device used when carrying out the present invention. FIG. 2 is a schematic diagram showing the application of ink to a printing medium. @Figures 3 and 4 are schematic diagrams showing an example of an apparatus for carrying out this embodiment. FIG. 5 is a schematic diagram showing the chest pain of the print head and the printed object I. 13... Ink pressure tank 15... Ink injection nodal 17... Tmu 1 magnetic valve 21...°
Air outlet 27...Endless belt 29.
...Base material 31...Paste sol 35m, 35b...
・Heating furnace 37m, 37b, 37e, 37d ・Printing head 45m, 45b ... Heating furnace 49 ... Powder 35

Claims (1)

[Claims] 1. A synthetic resin layer is formed on a substrate or a carrier sheet, and then an ink jetting nozzle is sprayed by an jetting control means that controls the jetting of ink according to information given in advance. A method for producing a decorative material, comprising spraying and applying ink to the synthetic resin layer to form a pattern. 2. The method for producing a decorative fabric according to item '1 of the invention, wherein after forming the pattern, a transparent or translucent resin layer is laminated on the synthetic resin layer on which the pattern is formed. 3. The method for producing a decorative material according to claim 1 or 2, wherein the synthetic resin layer is made of a non-foamable synthetic resin composition. 4. The method for producing a decorative material according to claim 1 or 2, wherein the synthetic resin layer is made of a foamable synthetic resin composition. 5. Forming a layer made of a foamable synthetic resin composition as the synthetic resin layer, and spraying and applying an ink that traps or suppresses foaming of the foamable synthetic resin layer from at least a part of the spray nozzle. and then forming a transparent or translucent fine Jiir layer on the foamable synthetic resin layer or without forming it, heating to a temperature higher than the foaming curvature of the foamable synthetic resin described in r4fJ to foam it, The device according to claim 1, which forms unevenness that is in sync with the pattern.
lj leopard manufacturing method. 6. The method for producing a decorative resin composition according to claim 1 or 2, comprising a foamable synthetic resin composition in which the synthesis 40.1 resin is polymerized or cured by heat, ultraviolet rays, or radiation. 7゜ A layer consisting of a foamable synthetic resin composition that is polymerized or cross-linked by heat, ultraviolet rays or radiation is formed as the synthetic resin layer, and - a foamable synthetic resin composition is formed from at least a portion of the injection nozzle. Ink that promotes or inhibits polymerization or crosslinking of J- is sprayed and spawned to form a pattern,
Then, after partially polymerizing or crosslinking the foamable synthetic resin layer with or without forming a transparent or translucent resin layer on the foamable synthetic resin layer, the foaming synthetic resin layer is heated to a temperature higher than the foaming temperature. 1. A method for producing decorative fabric according to item 1 of patent g'+1, which involves foaming and forming unevenness that is in sync with the pattern. 8. The method for manufacturing a decorative material according to any one of claims 5.1 and 3, wherein the synthetic resin layer is made of powder. 9. The method for producing a decorative fiber according to any one of claims 1 to 7, wherein the synthetic resin layer is a sheet-like body. 10. The synthetic resin layer is made of a paste sol. The method according to any one of Claims 1 to 7 of Patent FIIIJ. 11. Claim 1, in which a synthetic resin layer is formed on a substrate, and natural fiber is used as the substrate. 12. A method for producing a decorative fiber according to any one of items 1 to 10. 12. A synthetic resin layer is formed on a substrate, and synthetic #t lit is used as the substrate.
The method for producing a decorative material according to any one of Items 1 to 10. 13. Forming a synthetic resin layer on a substrate, and using organic fiber nonwoven fabric as the substrate, permissible range of 6 to 6, item 1 to
The method for producing a decorative material according to any one of Item 10. 14. The method for producing a decorative material according to any one of claims 1 to 10, wherein a synthetic resin layer is formed on a substrate, and a nonwoven fabric without fibers and fibers is used as the substrate. 15. Forming a synthetic resin layer on a substrate, and using no [j! A method for producing decoration I according to any one of claims 1m to 1θ, using a nonwoven fabric made of a composite of #Jt and an organic forest agent. 16. The decorative material according to any one of items 1 to 15, which is performed by opening and closing a magnetic valve provided between the pressurized tank and the ink injection nozzle. Production method,
.