KR200431146Y1 - A ink-jet output material possilble to output double-face - Google Patents

Abstract

The present invention relates to a material for inkjet output capable of double-sided printing, in the case of the output material composed of the existing useful, water-soluble ink-absorbing coating liquid in the fabric was coated on only one side of the coating was not possible to double-side coating.

In this regard, the present invention relates to providing a material for inkjet output capable of printing on both sides by applying a coating method according to each coating liquid.

Inkjet printing material, duplex printing

Description

A ink-jet output material possilble to output double-face}

1 is a cross-sectional view of the original fabric configuration of the first, second, third, and fourth embodiments of the present invention

2 is a work flow chart of Examples 1, 2, 3 and a work flow chart of Example 4

3 is a conventional working process diagram

The present invention relates to a double-sided inkjet printing material using an organic solvent based ink, which is compressed by impregnating a coating solution composed of a polymer resin, a filler, and an additive on both sides of natural or synthetic fibers in a knife coating, roll coating, comma coating, or dipping tank. It is constructed by passing through a roller and drying.

In general, the inkjet output material should not have ink bleeding during printing, and there should be no problem in feeding, and there should be no curl in the material. In addition, it should be quick to dry after printing, have a clear color, and have excellent water resistance, durability, weather resistance and abrasion resistance.

The inkjet material for output using conventional solvent based ink has been used by coating the coating liquid consisting of a polymer resin, a filler, an additive only on the end face of the fiber. It is designed to make up for these shortcomings. Especially, if the banner is printed on both sides, there is no distinction between front and back, and you can expect double advertisement effect in both directions. Therefore, the development of a double-sided fabric is urgently needed.

The object of the present invention relates to a material for inkjet output capable of printing on both sides, this material is capable of printing on both sides, the ink does not bleed when printing, the feeding of the fabric is smooth, the curl does not occur after printing Should have In addition, after drying, the ink dries quickly, the color is clear, it has excellent water resistance and durability, and re-adhesion does not occur after printing, and peeling does not occur at all.

Conventionally, a product called FLEX (product name) is used to melt PVC (polyvinyl chloride resin) resin to make a film. However, this product is heavy, hard and thick, which makes it difficult to work and has a disadvantage of curling in long-term storage. In order to make up for these drawbacks, it is the ultimate purpose of the present invention to produce a fabric that can be printed on both sides by coating or impregnating (dripping) the coating solution on the fabric.

The present invention relates to a material for ink jet printing using both solvent based ink and the configuration is as follows.

The main component of the coating solution consists of polymer resin, solvent, filler and additives. First of all, the polymer resin is selected to have a good ink suitability that is appropriately dissolved in the main solvent of solvent based ink. Types include polyurethane resins, polyvinyl chloride resins, polyvinyl alcohol resins, polyester resins, acrylic emulsion resins, acrylic resins, etc., which may be used alone or in combination. Polymer resin is an important composition that absorbs the ink ejected from the inkjet plotter and forms an image on the surface thereof. The polymer resin is temporarily dissolved by a solvent in which the ink is dissolved during printing, but there is little shrinkage caused by the solvent to prevent the change of the image. The solvent dissolves the polymer resin well and can be used depending on the type of the polymer resin. Toluene, acetone, MEK, DMF, ANON, methanol can be used in the case of oil solubility, and distilled water, methanol, DMF can be used in the case of water solubility. Titanium dioxide, silicon dioxide, calcium carbonate, talc, barium sulfate and the like can be used as the filler. The role of fillers improves color development, lowers manufacturing costs and improves durability. In addition, the transmittance of light can be adjusted by improving the whiteness of the fabric. Absorbs the solvent contained in the ink to prevent the spread of the ink and to improve the physical strength of the coating layer. However, if the amount is excessively large, rather than the proper amount, the color deterioration and durability is reduced. Additives may be added plasticizers, oils, lubricants, UV absorbers, antioxidants, petroleum hydrocarbons, fatty acids, antifoaming agents, leveling agents depending on the type of resin.

The petroleum-based hydrocarbon composition and fatty acid may delay the drying speed after output depending on the composition ratio, but when an appropriate amount is added, the petroleum hydrocarbon composition surrounds the surface of the pigment particle seated on the resin layer and plays an important role of sharpening the color of the output.

Representative examples are as follows.

Example 1. 33 wt% of methyl ethyl ketone was added to a mixer, and 55 wt% of a polyurethane resin was slowly added thereto. While stirring at a low speed, 0.6 wt% of the pre-dispersed liposaccharide (TiO 2) was previously added to the polyurethane resin, and the liposaccharide was dispersed by high speed stirring. Thereafter, 3.6 wt% of silica (SiO2) was added to adjust whiteness and viscosity. Since the petroleum hydrocarbon 7.0wt%, UV absorber 0.3wt%, antioxidant 0.3wt%, fluorescent brightener 0.2wt% was added to complete the coating material of the inkjet output material. The present invention relates to a material for inkjet duplex printing, in which a finished coating solution is coated on both surfaces by a knife coating method or a comma coating method on a water-repellent treated fabric.

Example 2 15wt% of water was added to the mixer, and 70wt% of acrylic resin was added, and 3.0wt% of silica (TiO2), which was previously dispersed in acrylic resin, was added, and 3.0wt% of silica (SiO2) was added thereto at high speed. Stir to disperse the silica. Since 6.0wt% of a petroleum hydrocarbon compound is added. As an additive, 3 wt% of antifoaming agent, leveling agent, fluorescent brightener, ultraviolet absorber, antioxidant, etc. is mixed to complete coating of inkjet printing material. The present invention relates to a material for inkjet duplex printing, in which a finished coating solution is coated on both surfaces by a knife coating method or a comma coating method on a water-repellent treated fabric.

Example 3. 45 wt% of methyl ethyl ketone and toluene mixed solvent were added to the mixer, and 20 wt% of polyvinyl chloride resin was slowly added thereto. The polyvinyl chloride resin is dissolved while stirring at high speed. 6.0 wt% of lipo sugar (TiO2) and 15 wt% of DOP (plasticizer) are added to the liquor to stir at high speed to disperse the sugar. Thereafter, 4.0 wt% of silica (SiO 2) was added to adjust whiteness and viscosity. Thereafter, 8.0 wt% of petroleum hydrocarbon, 1.0 wt% of UV absorber, 0.5 wt% of antioxidant, and 0.5 wt% of fluorescent brightener are added to complete the coating material of the inkjet output material.

The finished coating solution is coated on both sides by a knife coating method or a comma coating method on the water-repellent fabric to finally form an inkjet duplex printing material having a structure as shown in FIG. 1.

Example 4 After adding 35wt% of water to the mixer, 50wt% of acrylic resin was added, 3.0wt% of TiO2 dispersed in acrylic resin was added, and 3.0wt% of silica (SiO2) was added while stirring. Stir to disperse the silica. Since 6.0wt% of a petroleum hydrocarbon compound is added. As an additive, 3 wt% is added by mixing an antifoaming agent, a leveling agent, a fluorescent brightener, an ultraviolet absorber, and an antioxidant to complete a coating material for inkjet printing. The finished coating solution is coated on both sides of the fabric by a dipping coating method or a method of impregnation coating to fabricate an inkjet double-sided output material as shown in FIG. 2.

As in the above embodiment, it is possible to provide a material for inkjet output capable of double-sided printing using an oil-soluble, water-soluble ink-absorbing coating solution.

The ink-jet printing material capable of printing on both sides of the present invention has superior printability and significantly reduces the weight of the fabric compared to the conventional FLEX fabric. Its thickness is thinner than FLEX, making it suitable for inkjet printing. Since the fabric is coated on both sides, curl does not occur, and ink does not spread even during printing, and there is no problem in feeding of the fabric. In addition, after printing, the drying was fast, the color was clear, and it showed excellent water resistance and durability. Therefore, it can replace FLEX and can be used as a banner because of its low price. When used as a banner, it is expected to have a double-sided advertising effect and excellent weather resistance, so it can be used for a long time.

Claims (2)

Inkjet printing material capable of double-sided printing consisting of coating a water-soluble ink-absorbing coating solution on the lower and upper portions of natural or synthetic fibers, respectively. Water-based ink-absorbing coating solution is applied to natural fiber or synthetic fiber by applying dipping coating method or impregnating coating method.

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