JP4665237B2 - Inkjet fabric - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inkjet fabric used to reproduce an original image read by a computer by printing ink with an inkjet printer.
[0002]
[Prior art]
In order to sharpen the outline of an image reproduced on a fabric by an inkjet printer (hereinafter referred to as an inkjet image) or to increase the density, a water-soluble resin is applied to the surface of the fabric to ooze out around the ink. In addition, a method has been adopted in which the surface of the fabric is made smooth by the water-soluble resin so as to eliminate variations in the amount of ink adhered.
[0003]
[Problems to be solved by the invention]
However, the prior art aims to make inkjet images as sharp as conventional offset, gravure and photographic images, and is superior to conventional offset, gravure and photographic images. It does not depict artistic value images.
[0004]
OBJECT OF THE INVENTION
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to reproduce an ink-jet image that has a deeper color than an offset, gravure-printed image, or photographic image, has a three-dimensional effect, and is artistically valuable.
[0005]
[Means for Solving the Problems]
That is, the inkjet fabric 17 according to the present invention is granulated on the coated surface of the adhesive 12 coated on the surface of the inkjet fabric body 11 by the cellulosic fibers 13, the inorganic fine powder 14, and the binder 15, and has a gap inside. The granular material 16 having a particle diameter of 1 mm or less having 19 is sprayed and bonded, and a crack 21 is generated on the surface of the granular material 16 . Pulp fibers may be used for the fibers 13 and calcium carbonate or diatomaceous earth may be used for the inorganic fine powder 14.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
According to the present invention, the ink ejected from the nozzles of the ink jet printer hits the gap 18 between the granular material 16 and the granular material 16 or the surface of the granular material 16. The ink ejected between the powder particles 16 and 16 enters the gap 18 and therefore does not repel. In addition, the ink ejected onto the surface of the granular material 16 has a curved surface whose surface is inclined with respect to the ink ejecting direction. Therefore, even if the ink rebounds obliquely along the ejecting direction. Since adjacent powder particles are present in the direction, the repelled ink enters the gap 18 between the adjacent powder particles 16. The granular material 16 is a mixture of the fiber 13, the inorganic fine powder 14, and the binder 15, and has fine irregularities protruding from a part of the fiber on the surface thereof. 13 and the fiber 13 are separated, and a fine gap 19 is formed. The ink sprayed on the surface of the granular material 16 is absorbed by the fine irregularities on the surface, and is absorbed by the fine gap 19 inside the fiber through the fiber. Is done. Further, the ink ejected onto the surface of the powder particles 16 is energized in the ejection direction, and flows and diffuses in the ejection direction in the process of being absorbed by the fine gaps 19 inside the powder particles, and the particles 16 Cover the entire surface of Thus, the ejected ink adheres to an extremely limited narrow spot corresponding to the particle size of the powder 16 facing the nozzle tip of the printer, and does not ooze out around it, and the inkjet image becomes clear It is reproduced.
[0007]
As described above, the inorganic fine powder 14 is mixed so that the fibers 13 and 13 are separated from each other and a fine gap 19 is formed therebetween. Therefore, the particle size of the inorganic fine powder 14 is not limited to the extent that it is equivalent to the thickness of the fiber 13, and is preferably 20 to 300 μm. The inorganic fine powder 14 is used as a filler for latex and other resin compositions such as calcium carbonate, zeolite, clay, talc, aluminum hydroxide, barium sulfate, magnesium carbonate, diatomaceous earth, cement, plaster, etc. Can also be used. Among them, it is recommended to use a material in which the inorganic fine powder 14 itself has a porous structure, such as diatomaceous earth. This is because the fine gaps 19 can be made dense inside the powder particles 16.
[0008]
The length of the fiber 13 is 10 times or less, generally 10 mm or less, preferably 5 mm or less, in order to make the particle size of the powder particle 16 finer. Preferable fibers are cellulosic fibers that have water absorption properties and are easily adapted to ink. In particular, pulp fibers are recommended. The pulp fiber may be a waste paper crushed.
[0009]
The binder 15 is used in such a small amount that the fiber 13 and the inorganic fine powder 14 are adhered to maintain the shape of the granular material 16. The amount of the binder 15 used can safely block the fine gap 19 of the granular material by the binder 15. To the extent that it cannot. The granular material 16 is generally 1 mm or less, preferably 300 μm or less, but the particle size varies depending on the application of the inkjet image, and is roughened in an inkjet image seen from a relatively distant place such as a signboard or an advertising tower. If you can see it from a relatively close distance, make it fine.
[0010]
The fibers 13 are intertwined even if the usage amount is small, and form a net-like three-dimensional structure, and the inorganic fine powder 14 is entangled and held therein, so the usage amounts of the fibers 13 and the binder 15 are: The volume ratio may be less than half of the inorganic fine powder 14, and by doing so, non-flammability can be imparted to the inkjet fabric 17. In order to enhance the nonflammability of the inkjet fabric 17, it is preferable to use aluminum hydroxide that contains crystal water and has a flameproof action.
[0011]
The coating layer 20 of the granular material 16 may be overcoated with a coating 20 in order to prevent peeling off. Moreover, in order to suppress the peeling off of the granular material 16, it is good to apply | coat the coating material 20 or to pass through an embossing roll, and to suppress the unevenness | corrugation by the granular material 16 and to make the spreading | diffusion lamination | stacking surface smooth. Thus, even if it passes through the embossing roll, the recesses (gap 18) between the granular material 16 and the granular material 16 remain without disappearing, and the fiber 13 exposed on the surface guides the ink to the internal fine clearance 19. In addition, since the cracks 21 are finely formed on the surface of the granular material 16 by being crushed by the embossing roll and the ink is easily absorbed, it is inconvenient even if the surface is smoothened through the embossing roll. The ink-jet fabric 17 is smooth and has a smooth surface and excellent wear resistance.
[0012]
In this way, the powder body 16 gives the fabric body 11 absorbability with respect to ink. Therefore, the fabric body 11 is not only a porous sheet having water absorption properties such as paper and cloth (woven fabric, non-woven fabric), but also a plastic film or metal sheet (thin metal plate or metal foil) that has not been used in the conventional ink jet. Other non-water absorbent sheets can also be used. In addition, even if the crack 21 is made on the surface of the granular material 16 by passing through the embossing roll, the granular material 16 is not finely pulverized because the fibers 13 are intertwined.
[0013]
A granule 16 having a particle size of about 350 μm, which is granulated by pulp fibers 13 having a length of about 2 to 5 mm, calcium carbonate 14 having a particle size of about 50 μm, and an acrylic resin emulsion 15, is converted into a carboxyl methylcellulose soda salt (CMC). .)), The dough 17 obtained by spraying and laminating on the coated surface of the flame-retardant backing paper for wall covering with a basis weight of 98 g / m ² coated with the acrylic resin emulsion composition 12 thickened by. When ink was applied through a printer, a printed image with a clear image and a three-dimensional appearance was obtained.
[0014]
【The invention's effect】
As described above, according to the present invention, the ink particles are provided with the absorbability with respect to the ink. Therefore, the ink jet fabric 17 having excellent water resistance can be obtained by using a plastic film or a metal sheet for the fabric body 11. .
[0015]
The ink ejected from the nozzles of the ink jet printer does not scatter on the surface of the fabric 17 and adheres to the narrow spots defined by the powder particles 16 facing the nozzles, so that the ink jet image is clearly reproduced.
[0016]
The entire powder particles 16 sprayed and adhered to the dough body 11 are covered with ink, giving the appearance that the ink has been raised and applied, and fine undulations (irregularities) due to the powder particles 16 are formed on the surface. It is possible to reproduce an ink-jet image that has a deeper color than an offset, gravure-printed image, or photographic image, has a sharp outline, has a three-dimensional effect like an oil painting, and is artistically valuable.
[0017]
Since the granular material 16 contains the nonflammable inorganic fine powder 14, the nonflammable inkjet printed matter suitable for an interior material and an exterior material is obtained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an inkjet fabric according to the present invention, with a part thereof encircled and enlarged.
[Explanation of symbols]
11 Fabric body 12 Adhesive 13 Fiber 14 Inorganic fine powder 15 Binder 16 Powder body 17 Inkjet fabric 18 Gap 19 Fine gap 20 Paint 21 Crack

Claims (1)

On the coated surface of the adhesive (12) coated on the surface of the ink jet fabric body (11), the cellulosic fibers (13), the inorganic fine powder (14), and the binder (15) are granulated to form a gap (19 An ink-jet dough characterized in that particles (16) having a particle diameter of 1 mm or less having a particle size of 1 ) are sprayed and bonded , and cracks 21 are generated on the surface of the particles (16) .

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